It is hard to believe that the leaf is simply a painting. The leaf painted here looks so real and three dimentional that it is nearly impossible to believe that it is a water color painting. The transition from red to yellow to green is flawless. The spots of brown and holes in the leaf give it such a life-like quality. The shadows are done perfectly, making the leaf feel like you could pick it right up off of the page. I especially like the leaf veins. The way they move across the leaf, and the shadows from one side of the vein to the other make it absolutely life like. I don't think that there are any suggestions that I can make to improve the peice. Great job.
Minus one star from originality since it sounded like an assignment, and minus one star from Impact due to the quality of the scan, although I'm sure it looks amazing in person!