Wow, nice job Vu! Its looking pretty sweet. Crit-wise: I would overlap the top seat over the engine. The back of it almost creates a tangent that is distracting. If you lean it back or shift it to overlap the engine, that would avoid this. Second, what is your animal? A little more indication somehow integrated would be helpful. Good job man, damn, concentric circles in perspective...must have taken you a long time...haha.