Here's a few problems I see.
1) The cockpit of the 737-100 seems a little bit too foward. (I could be wrong about that)
2) The textures of the cargo door latch seems to be on both side (hard to explain) and so does the First officer window latch. (Manual II page 31) " Window unlocking can also be accomplished using an exterior handle: For passenger airplanes, at the First Officer's window only; for cargo airplanes, at both windows." I see them for the -100,-200,-200adv.
3) When the windshield wipers are turned on they seem to be inside the cockpit. :o
Edit:I was wrong about the cargo door.