Not much of an update, haven't had much time to work on this. The above is just the same animation without the white.
To clarify, this is going to go on a river flowing downward... which it doesn't look like at all right now, so it needs a lot of work.
I'm not sure this direction is even worth pursuing, or if I should just go with a completely different style water, like this (but animated):
I fear that may be too much like a waterfall, but the only reference of in-game water I can seem to find is all waterfalls and oceans. I experimented with making more obvious waves, but it still looked too ocean-y.
I might just end up going with a more waterfall-like look, if only because the direction of movement is very clear (which is important to the gameplay).
EDIT:
Fleshed out the "waterfall" tile a bit, I'm thinking that'll be the direction I have to go with it after all.