Ben2TheEdge,
Your example is much cooler than mine! Although the one I've posted is more schematic and easier to understand.

Genadino,
How come these examples are not going to help you? The one Ben has posted is quite close to what you need. You probably won't get it right the first time, but hey, who did? We're all here to learn. Try to study, understand the examples and improve your own animation, otherwise you probably won't get any help.

I know it's your problem. I've only mentioned it because if you animate only parts of the sprite you'll have to re-do a lot of stuff to blend it to the rest of the animated body. So, I just meant to help.
But if that's what you want, by all means, suit yourself.

First I must say I like where this is going. The water has personality with all the floating particles and pointy waves. The colors are pretty good too. Well done.

A few pointers:
1. I think there's too much grass on the most steep slope (the land tile closer to the water). Check out this image.. Show us some dirt and It'll be fixed! Another thing: I can't really picture grass growing in fringes like that. I realize they're there to create a transition between dirt and plant, but still I think it would look nicer if you'd show some halms (is that the word?) on the area closer to the ground and blades pointing up.
2. Theres a vertical line running along your dirt tiles. That's a common problem that I've managed to fix for good on my work by downloading ProMotion trial. It has an auto tile completion feature, that really helps getting things done properly. Also, the round highlights and the mid tone speckles look like individual pebbles. Maybe if you create larger areas for each "stone" (dirt blobs in this case) and shade using all 3 tones you'd achieve more dirt-looking tiles.

I hope it helps!
-Stefano

Unless your game is using a camera pointing down at a 90 degrees angle to the floor, it would probably be a good idea to add some overlapping grass blades (for depth) and additionally you could also "lift" the two lower grass blades on the "X"s. This will add a nice perspective to your pixels.

Concerning the tiling, I think you did a pretty good job on hiding the modulation, except for the horizontal darker lines, as Xion has pointed out.

I could make an edit if you want me to, because my crippled English might in the way when I'm trying to explain something less obvious.

Yeah. I should have posted it before... that's too bad.
Anyway, good luck with completing your project. Can't wait to see it done!