For having only spent a few hours on the background image, I think it turned out very well. It used to take me days to make those, and they weren't quite as good.
My goal was to have the demo released by the end of the year, and I am definitely on schedule for that.
I'm using Godot. I've tried out a few different engines, and i found Godot to be the best for authentic-looking 2D retro style games.