The game concept is good. It wasn’t very clear what the points mean, and how to get more points. Mostly what I understood you try to match the sides of adjacent tiles to similar terrain. Not sure what the score milestones do. The second milestone at 8192 seemed to be quite far off, given the scoring rate. Played upto a score of about 800, so not sure if the scoring rate picks up after that. Rotation wasn’t working too well on the trackpad. Rotation with ‘R’ key was fine though. The background music is good, although it stopped after some time.
The game implementation in particular is excellent. The shake animation when an animal was about to be placed near another is neat. Tile rotation is smooth. Good job overall, and all the best for future development!