Thank you! I focused more on creating atmosphere and something expandable plus I didn't have any good ideas, so I just didn't really pay much attention to the theme. (Greatfully this was allowed)
I put the checkpoint at the end to make the intended experience a bit longer, and give more challenge as you climb back the way you came. It was a bit lazy, but time got me, so I did what I could.
I will of course play your game :)