Trisha has been requested by hundreds of people to do commission work. Commission work can be exciting for both the artist and the client, as the subject matter can be quite diverse. From capturing the Grotto of Notre Dame, to the "Trilogy" Yacht in the Bahamas, Witty has been inspired by a wide range of requests from all over the country.

Trisha strictly bases her commission work on the client being 100% satisfied with the experience. There is no obligation to purchase the finished piece, if ideas do not mesh, which rarely happens.

Witty begins most of her commission work in the autumn, and usually gives her clients a 3-6 month timeline for completion, although it may vary. Inspiration, conditions and time are all a part of the creative process, and she wants clients to keep this in mind throughout the experience.