However, automatic icon reflection would be a pretty cool feature for objectdock.
It will be there in OD 2.0.
Suggestions. 
1. It's hard to tell where your light source is coming from. The use of "glossiness" is kind of sporadic and everywhere. It seems like the light source ought to be above and behind. In that case, the front "ledge" ought to be a bit darker, instead of lighter.
2. The feet on the lower left and right sides look kind of off.
Looks very promising! I've noticed you tend to be pretty creative in your works. 