Yeah, Helm, I started with the crater because I felt like making one and then really wanted a bridge and realized "Oh shit, I need something alien and/or futuristic..."
Hence the spaceship. I also wanted to mess with dirt more, so I made it a crashed ship.
And you caught the sort of Mother/Earthbound thing dead on. Once I finished, it reminded me of exactly that.
Edit: Whoa, Feron, I just noticed the clever use of tiles. I never even thought about making my crater in the manner you did, by using the height of a tile with an isometric image within it, basically making the tile hold more than it's perceived capacity.