I know its late, but I felt like mentioning that a little variety in the size of your rocks would go a long way to removing the monotony in the rocky parts. I really quickly edited about 3,4(?) tiles to give you an idea. I saw your post about not updating, so if this isn't relevant anymore, well, it took almost no time so that's fine.
Cool animation, BTW. Very charming and personable, something you don't always see.
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