Lee, It's the portholes at the rear of the crane I don't like. I can block over the picture with my thumb, on either the single roof portal, or the two portals below it, and I like it more again.
No, not too bad for a broken tone arm, and an empty tool package laying on a full garbage can. "Call me Gheppetto, it asked to be built". And at the same time, its no scale model, and should have a toyish quality to "fit in". All my stuff has been low effort for a while, but I'm still happy with most of it. I'm sort of "Rat Rodding" my model railroad
Filler, or a vent panel over the offending windows. That would be the only way to back out of that, other than a new cab roof. Which wouldn't be that hard either But on the corners and such, I eventually wanted a "raw', imperfect, aged, look; damaged panels separating from the frame, peeled back corner or framing, dents (with heat) etc. I think some styrene strips for outer panel framing, and/or scoring panel sheets into the sides, (and some rivets) will "clean it up" more. That seem along the roof panel is way too wide even by design. I'll need to " bend it open", and or close the gap with framing. It's a back-burner job finishing this one.
I can do filler work, but hate waiting for the modeling type to set, and hate "shrinkage" even more. I usually let filler set for a least a week, sometimes months. And I've had it "divit and dent" suddenly after years. All it takes is a tiny drop of something that can penetrate a little, to hit the no gloss paint, so I just avoid it if I can.