Coloring after the sketch

so this sketch of an eye is not completely original, it should be a mixture of the dragon eye from those hobbit movie and some texture stuff from an indian movie poster, i don't remember the name, but it had 3d in it. it was a horror movie.
but i will change the colors a lot, so you can say it would produce a complete new product.
i am choosing different variations of green and red and yellow and purple for this drawing.

it s a bit harder to keep clear line with a large brush but i will try a different approach