Learning Plein Air Painting in Oil with Gregory Mason

Course Details


Thursday 08th August 2024


10:00 am – 4:30 pm

Course Description

This is a unique invitation to start or continue your journey into oil painting under the guidance of UK Cass Art Oil Painting Ambassador and Sky Arts Landscape Artist of the Year Finalist, Greg Mason, in the stunning setting of Cornwall School of Art.


The day will begin with a demonstration outside from Greg Mason on how to start an oil painting using ‘sketch and tone’. Introducing you to a simple technique of making an underpainting with just 2 colours, Greg will quickly map out the composition and tonal values that form the foundations of good oil painting technique.


After a coffee break back in the studio, you will head out and find a spot to embark on your first practical painting session, laying down an under-painting using the same principles as you’ve been shown, with the support of your tutor to guide you as you go. You will be introduced to the art of composition, colour mixing and oil paint application.


After lunch Greg will give a demonstration on how to add colour to the tonal underpainting you began earlier in the day before inviting you to develop the work you began in the morning session working with an ‘extended palette’ of oil colours. Our final session is all about ‘finishing touches’, looking at ways in which to bring out the full potential of your oil painting and working towards completion. Towards the end of the day, we will head back to the studio and have a short debrief with a chance to reflect on what you’ve learned and to identify some key principles to take away with you to build your confidence and develop your skills moving forward.


This course is suitable for beginner to intermediate level oil painters.


This course is an excellent second step for those attending the ‘Learning to Love Oil Painting’ course the day before.

Course Information

Ability level

All abilities welcome



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  • Set of oil paints of the best quality you can afford – to include Titanium White, Cadmium Yellow, Yellow Ochre, Cadmium Red, Alizarin Crimson, Cobalt Blue, Ultramarine Blue, Raw Umber, Ivory Black
  • ‘Liquin Original’ painting medium
  •  Set of Brushes: These should be synthetic oil painting ‘short flat brushes’ in a variety of sizes – ideally from small to 2cm wide – a set of 6 or so would do
  • Low odour brush cleaner for oils
  • jam jar
  • painting panel 40cm x 40cm in wood ready primed in white with Gesso. An example would be 3mm Gesso Board or cradled board or Gesso primed ply wood panel
  • Palette
  • Rag
  • Sketch/note book, a pencil and a pen to write with
  • Appropriate clothes and footwear for painting outside including hat and suncream if sun is forecast. Also drinking water.


Provided by Cornwall School of Art if required

  • Easels
  • Drawing boards
  • Water jars
  • Pencils
  • Erasers
  • Rulers
  • Scissors
  • Clips

All art materials are available to purchase in the Truro Arts shop, 26 River Street Truro TR1 2SJ, and you will receive a 10% discount on all supplies for the course.



Greg Mason is an award-winning figurative painter and a Member of the prestigious Royal Institute of Oil Painters, exhibiting at the Mall Galleries in London. His work focuses on capturing unique moments, playing with light and form to create atmospheric scenes that are both visually and technically striking whilst holding a deeper narrative that invites a more intricate understanding of the subject. Greg’s paintings are highly collectable with accolades including Saatchi’s ‘One to Watch’, Finalist on both Sky Arts Portrait and Landscape Artist of the Year TV shows and a Finalist in the British Art Prize 2024.

Find Out More

Our courses usually begin at 10am and end at 4:30pm, with a half an hour lunch break at around 1pm. There will also be brief morning and afternoon breaks, with free tea and coffee available in the kitchen area. At Lunch time you can make things nice and easy by pre-ordering a freshly prepared Coach House Lunch. Alternatively, you’re very welcome to bring along a packed lunch and any other refreshments you like.

On sunny days students and tutors are invited to enjoy breaktimes outside in the leafy courtyard or gardens surrounded by birdsong.




Thursday 08th August 2024


10:00 am – 4:30 pm



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Cancellations must be made in writing/email more than 4 weeks prior to the course start date to guarantee a refund. Read our full policy on the Course Terms & Conditions page.