Incredible game, I had an absolute blast playing through this! The difficulty curve of each area feels well-balanced, I loved getting stumped by a new mechanic and back-tracking through the levels to experiment more with it. TOTEM especially had me questioning my understanding of the mechanics right up until the very end.
There were times where I felt hampered by the block-pushing, wishing I had a bit more space to work with (looking at you, SHARD garden!) but that's a very minor gripe :)
Time to find some more secrets...