I think the wave pattern feels very repetitive, even more so in motion. Using smaller waves would make it easier to hide the pattern. Alternatively, you could "stack" waves (
exaggerated illustration,
effect in motion), e.g. a big wave that takes 3 frames, and a much smaller sequence of waves that stacks with it that takes e.g. 2 frames (having different periods for the waves looks more natural), so you'll get a 6-frame animation loop.
You have some highlights in the water that are almost static, they look unnatural.
I'd have the water fade in colour more gently. I'd go into the second colour only slightly below the waves, and then fade from there to the darkest colour. Having a big space of light and then fading to dark suddenly makes it look like a shadow on a tube, rather than darkness in transparent water.
Consider making each colour transition its own tile, with solid-coloured water tiles optionally between them. That way you can have a gradient between all the colours for a water column of any height, and you could have the fading end on a lighter colour in shallower pools if you wanted to.
A critique I missed on the ground last time: The dark background dirt tangents with the corners/tops of the platforms. I think it would look more natural if it didn't, but rather came out of the sides of them, or went above them in some cases, e.g.
I think this way, the platform edges are clearer, and the scene feels more interesting because there's some visual overlap and more interesting silhouettes.
(Also, while I was editing, I noticed you seem to have some semi-transparent pixels on the edges of the background rocks! Might be left-overs from when you sketched stuff in first? IMHO it's best to sketch with pencil tool, so your colours are under control and sketches easy to get rid of.)