Well, on one hand, the detailing and construction of the model are and was impressive as hell--the model itself came out great. I hope you won't take it negatively though if I say that I question your decision on painting certain aspects of it. Or, NOT painting certain things.
I know it's probably "technically correct" to have left the tools in the what would have been the standard over-painting of the base coat, but it just hits me as too monotone, and almost looks like an error. No weathering at all on those either? Hmmm. I guess it could be plausible, but it's not very exciting as a model.
Likewise, this model would benefit greatly from some patiently-applied pin washes to really bring out all the panel lines and details. The side skirts almost look like one big piece, and you can't see any of the bolt holes in them, nor separation of panels. Pin washes would bring that out.
I don't know if you forgot to paint that periscope cover in the bottom picture, but i looks like you might have..?
Where the cable is running/rubbing along the hull--some smart chipping would look appropriate there. Likewise would it around the hatch tops.The would have some wear at some point.
Also, the tarp or bundle along the side--it's all monotone green, even the straps. You should use a different color green--perhaps a more olive drab tone?--on that, and paint the straps a different shade too, to contrast and provide visual interest Again, it just fades into the hull as it is now.
I hope you don't take offence to my comments, but I would feel as if I weren't honest to not say that there are so many little things you could still fdo to really make this model "pop" in a big way.