the engine looks very good,nice job.
The only thing that annoys me a little bit is that you and a lot of other people in the finished work section are saying that this is there first model ever, please don't do this anymore, because it discourages people who are new to 3d(read; maya) and your work is very good(even if you were at it for 10 years) so take pride in it

keep up the good work