I really liked the concept of the game. It was fun and interesting.

Feedback:
There needs to be clarity in the art outside and insides of distinguished buildings.
There also needs to be some more action in the game because the pace felt kind of slow and not entirely engaging.
I wish I could have seen my character moving towards things on the mini map. 
I wish there was an intense background theme for the story mode while you progress I think that would be nice.
It would be nice to have a sprint/dash button for faster travel.

Overall though nice work so far.

Super cool GTA clone including the GTA theme song. What is missing is perhaps the nice 3d effect in the original game. It is too flat and unclear where the walls are. Still very impressive!