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Plein Air Painting with Diane Gibson at Cromwell Valley Park

  • 12 Jun 2019
  • 10:00 AM - 3:30 PM
  • Cromwell Valley Park, Cromwell Bridge Rd. Parkville, MD 21234
  • 0


Registration is closed

Plein Air Painting 

with Diane Gibson

Wednesday, June 12th 2019
from 10 AM to 3:30 PM
at Cromwell Valley Park
2002 Cromwell Bridge Road
Parkville, MD 21234

Member Registration Opens May 4th 2019 10:00 a.m.

Member Fee: $60

Non-Member Registration Opens May 18th 2019 at 10:00

Non-Member Fee: $65

Not a Member? Consider joining.

Registration Deadline:  

June 5th 2019, unless the program is full prior to this date. 

Raindate: June 19th 2019

Plein Air painting is a wonderful addiction, a chance to be outside and to paint Maryland forests, farmyards and local villages.

The instructor, Diane Gibson, has been plein air painting in Maryland and while hiking for many years in England, France, and China.  Foremost influences on her style have included Tony Couch, Fritz Briggs, John Salminen, Tony van Hasselt, and the famed English painters, David Curtis and  Edward Seago.  

As a 40 year member and past President of the Baltimore Watercolor Society, she believes that improvement in one’s painting involves continually taking courses whenever you can as well as painting in the studio and outside on a regular basis.  Accepting the inevitable frustration and maintaining the courage to solve a conceptual or a technical problem area in your painting is essential to success.

This Plein Air event will take place at the Cromwell Valley Park in Baltimore County and will teach you how to: 

Plan and arrange a composition based on a scene which attracts you 

Position three values—light, medium & dark

Use a limited palette of six warm and cool primary watercolors

Use a majority of soft and a minimum of hard edges.

This one-day course will include:

  • a brief orientation lecture, 
  • a watercolor demonstration,
  • individual instruction and a group critique

Hints to Successful Plein Air Painting



Horizon line3/4 up or 3/4 down paper

Center of Interest:  

upper left or upper right

lower left or lower right

Size of shapes:  Papa, Mama, Baby

repetition and alternation in shapes and color (ex: fence, telephone pole, weeds)


Three values:  light, medium and  dark

Plein air values:  sky is light, foreground is medium, uprights (ex: trees) have darks

Popular arrangement of values:  center of focus is light (ex: building)

surrounded by some darks (ex: trees) or reverse (dark house surrounded by light) 

Counterpoint:  darkest dark against lightest light  at center of interest

Cool colors against warm  colors; texture against non texture, areas of calm against complex area


Limited palette:  six colors, two each of warm and cool blue, (Ultramarine Blue,

Phalo Blue, warm and cool yellow (Cadmium Yellow, Lemon Yellow), warm and

cool red (Cadmium Red, Alizarin Red)  Also Burnt Sienna

Mix two cool colors for bright color; mix one warm and one cool for muted color

Warmer colors advance (foreground), cooler colors recede (background) 

Aerial perspective involves values and colors diminishing in intensity as landscape recedes into distance


80% soft edges, especially in far distance, 20% sharp edges in center of interest

Drag brush sideways to create rough texture on building and grasses


Recommended supplies:

Artist quality watercolors including:

Ultramarine Blue

Pthalo Blue

Cadmium Red

Alizarin Crimson

Cadmium Yellow

Lemon Yellow

Burnt Sienna

Paper:  Arches ¼ or ½ sheets or

16” x 20” or 12” x 16” blocks

Brushes:  large 1” to 2” flat brush, # 6 or  #8 round brush, small liner

Easel, water container, masking tape, pink eraser, Kleenex, sponge and umbrella to either put into the ground or on your easel to protect you from the sun.

Don’t forget to bring your lunch and enjoy the camaraderie of fellow artists!


  • The price for the workshop is $60 for BWS members (Signature Artists and Associates) and $65 for non-BWS members.
  • The class size is limited to 15 people, and the workshop cannot be split with another person.
  • Please pay online if possible; The payment system allows the use of your Credit Cards. Otherwise, checks should be made out to Baltimore Watercolor Society and mailed to Sabine Yeager at the address below. Please enter the name of the workshop on your check.


The workshop will take place at

 Cromwell Valley Park

2002 Cromwell Bridge Road
Parkville, MD 21234
  • Confirmation of your registration will be sent upon receipt of your check or online payment. Checks must be received within 5 days of registration to be considered as registered.

FOR ONLINE REGISTRATION VISIT: and go to Public Events. 

Remember that these workshops fill up very quickly. When filled, you can register on the waiting list.


  • BWS maintains a workshop waiting list. When openings occur, BWS fills the openings from the waiting list on a first-come, first-served basis. 
  • BWS adds names to the waiting list according to the date and time .
  • You can join the waiting list if a workshop is filled.
  • You can't join a waiting list before registration opens.
  • Paid registrants who cancel on or before May 28th will receive a full refund less a $25 cancellation fee if the spot can be filled from the waiting list. 
  • Paid registrants who cancel after May 28th will receive a full refund less a $50 cancellation fee if the spot can be filled from the waiting list. If the spot cannot be filled, no refund will be given.
  • In the event of inclement weather, a raindate is set for June 19th. If BWS cancels the workshop, then all paid registrants will receive a full refund.
  • Check this website for changes, updates and new information.

Please direct questions to our Program Chair
Sabine Yeager at

or by phone at 410-245-0366

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