For a few maps inside my game I'm trying to do a bit of pixel art images. I'm not sure how it looks/what could be done to do it better.
So my question here for a bit of feedback.
The image shall represent the map of a dark dirty alley where the dustbin is full of bumps and scratches and blood is coming from some of them and from under it.
Also there is a bullethole in the wall where a bit of blood is.

Some things I noticed already:
-Bullethole is a bit off
-Bump doesn't look like a bump (right side of the dumpster)
-Scratches I'm not sure about (they are made by claws)
-Floor is a bit "tiled"
Although aside from the first part I'm not sure how to make it look better. Thus would be thankful for a few pointers there in addition to general critique.
Tnx (btw is my first try at pixel art since >10 years).
