Its a very decent paint job for a beginner. Certainly, far better than my first efforts. Its kinda tricky to give advice, as it looks like the red needs more contrast, BUT the photo is strongly lit from above, which provides artificial contrast and areas of shade (or natural shade, depends on how you look at it, I suppose.) Anyway, for better feedback, I recommend starting a thread in the forums with photos of the model lit from the front left and front right (two lights) and asking people for feedback there. These gallery posts are good for voting, but if you want people to actually critique your work, the forums are much better. Don't worry - folks there are very friendly and helpful :)