Okay, critiques about the model:
Commander copula is wrong. Yours is straight-edged (vertically) with several large vision ports that are indented (they do not need to be, they can simply be squares with the “hole” part textured). The Panther’s copula should be sloping inwards (hyperscale.com/features/2000 … hemm_3.jpg) with much smaller vision ports and a machinegun “ring” leading all the way around above them (this is not needed tbqh as the Panther will not be having a MG there). Also as you see in the picture there is a second extrusion on the top of the turret, the bulbous little bit, that should be done.
As you can see in this pic: img519.imageshack.us/img519/5341 … ulljp0.jpg the mantlet and such does not extend from top to bottom of the turret but is infact much shorter.
Also, your barrel is far too narrow, as is its housing on the mantlet.
The turret is also not narrow enough at the front, and needs to be moved back on the hull a bit, as seen here: cad.com.au/realcad/gallery/panther-tank1.gif
The boxes on the back of the hull: hyperscale.com/features/2000 … ermm_5.jpg are not beveled as you have yours, but straight-edged.
The engine deck needs more detail in the form of the four small round thingies seen here: hyperscale.com/features/2000 … ermm_4.jpg Also, the two circular engine exhausts should be sloped inwards.
Also the front has a couple of protrutions; hyperscale.com/features/2000 … ermm_1.jpg
Your panther is also much too tall/thin, particularly the wheels which are too big (and thus makes the entire track section too tall):