I love the main character as well. Overall the game has a pretty cool look to it!
I agree that the maps are too big and the amount of enemies too low. You spend most of the time searching without anything interesting going on.
Collecting health physically in a certain location on the map is a pretty cool idea! Would love to see how that plays out in action.
Good result for the time you had. Hope you keep working on it for a bit. :)