I like the set-up for this game, but I had a lot of trouble with it.
Playing on windows, it seems that the click-boxes weren't working as intended, and I wasn't able to progress past the second puzzle.
I THINK I understand that its a "match the pattern" game, although with the trouble I had with the controls, it was hard for me to tell.
I like the coal icons a lot, the distinctive colors make for good puzzle pieces. Overall though, I think the art could have been improved a bit, it feels a bit muddy and dark overall, but maybe that's the intention.
The extracted file was over 7GB, so I was expecting a little bit more. I would definitely see if something can be done about that file size in the future.