I'll be fixing it up soon.

The peg slants were on purpose,  the reference had slanted pegs.
Yes I know the symbol looks odd,  I just quickly put something together before going to bed.  Planning to fix it soon.

Just noticed that the AC and Antenna would have to be installed with people on top so there should be some safety.
Such as a Parapet (aka low wall) that surrounds the building so it look's more realistic.

I suggest dropping the inside to keep the same height instead of adding in Walls.

Look good,  but
The farthest back leg should have the heel risen a little bit.  (Looks as though he could break his ankle)
His farthest leg out's foot looks like a rise starts between the toes and heel,  which at least for me is impossible to do.  Start the risng at the base of the toes.

Looking good though!  Keep it up.

It seem's as though there is a dark blue outline on the red Band,  looks awkward.
Anything else has already been said.

There are a few places with 2 pixel with,  very minor places though but still there nonetheless.
If you color the outline other than black  (Like a dark pink/beige)
When you zoom in his eyes are blue and when the image is back at 100% it looks black.  (more contrast on eyes)
In the front view he has darkened area around his "butt" but in the back view it's much closer to the head.

Other than that It seems pretty good