You can rate this game on itch.io in the top right corner of your screen. There should be a "rate this game" button. However, if you're talking about rating the game for the game jam that it was made for, only people who participated in the jam can rate games.
Of course. I was inspired by Thomas was alone as far as the actual mechanics, the tileset was from the Oubliette Tileset I found, and the character was original.