Looks to be cleaned very nicely, but as szaba18 said, the rims are the biggest problem
Both are much too small, if you compare them to the base, they're almost half the height.
The rear one is very off, and the angle you have it set too is too straight on and not narrow enough. It needs to be a lot more eliptical.
To fix the problem of the rims being too small, you'll have to make the arches bigger. Click on the stance tutorial in my sig for some tips on how to do this
Keep us updated on any progress