Absolutely LOVE your sprite work! Especially for the main character. The overall presentation is really nice and I can really imagine it on a older handled system.
If i HAD to give any negative feedback I'd say it would benefit from some more user feedback for certain actions, for example adding a hit or shake animation to buildings to react to the player that they hit the building, it just requires more damage to break.
there's the obvious lack of sound, however as someone who actively forgets sound too i cant fault you for this as it can often be overlooked when you're focused on development.
I do genuinely think this project really hits the mark aesthetically and think you've done a great job ! Would love to see this expanded on in the future.