Welcome!
Nice work
A few things that jump out at me
The readability on the thing on the bridge. Is it a luggage trolly of some sort?
The red lights and things on the buildings are also extremely vague and I cannot understand what's happening there.
The colors of the buildings are a tad too similar, some more contrast will help a lot.
JAGGLIES! a lot of irregular edges.
Also there seems to be a soft glow effect from the top right, which makes this not a pixelart, but I'm not a purist, so I don't really care.