Nice graphics! did you draw the ghost yourself? 

Pretty good for your early games! You had damage set up, ghost following the player, and camera follow with not exceeding boundaries(tho still needs fixing on the most bottom), lastly good map building.

I'd like to give some tasks you should try learning that could complement this game:

• Lights: many game engines have built in light mechanics, you could use it to brighten the white lady, or adds something like light spirits, or torches.
• Pathfinding: for the enemy to not get stuck on walls and smartly navigate their way to the player
• Audio: really adds a lot compared to having nothing, try pixabay for free sfx and music.

That's all! you seem to be good at art, so you should try Aseprite!