Great intro! I like that first sentence.
Occasionally I incorporate watercolor with my drawings and play around with collage to add more dimension to my pieces.
This detail should not be at the end of the first paragraph. You should put it somewhere else. At the end of the first paragraph, express the idea that you want the reader to remember.
Much of my work includes human anatomy.
This sentence gives me a clue about what UNIQUE CONCEPT you might give the reader to "remember you by."
I believe that I need a flourishing creative environment that allows my mind to grow, and I know that by attending SAIC I would be able to attain that.
This is too vague. It is sort of a stereotypical, generic thing to say. I want you to blast them in the face with your uniqueness.
:-)
Also, sentences are better without "I believe." Look at how much stronger this is:
I believe that I need a flourishing, creative environment that allows ...