To be what is probably overly critical, your grass lacks direction. Sure, you absolutely ROCKED the whole seamless tile, but the grass still looks too much like noise to me. Not accusing you of cheating or anything, just saying that it needs a little more clarity.

This:http://www.pixeljoint.com/pixelart/2825.htm
Has a bit more "direction" of the grass. It doesn't do as well at destroying the seams, but in my opinion, looks much more like grass. You can make out individual blades of grass, etc.

...can't find the other tile I'm lookin' for, but I hope that gives you an idea.

As for the water, your water is completely flat, or looks that way. In order to make them cool light-bendatures and stuff, you've got to have a couple ripples, etcetera. 'course I'm almost talking out my ass and really have no idea how you'd do that, just thought I'd make that observation.

You're doin' alright, keep at it.

Jalllloooonso. I'm sure it hasn't gone unnoticed, only unmentioned. I forgot, in my commenting, to mention how you HAD given the water some dimension, and had a more realistic looking water tile in many ways. Just 'cause I didn't say it doesn't mean it wasn't useful (Whooa lotta negatives), and I'm thinkin the same goes for smirt.

The only improvement I'd suggest on your tiles as an example, Jal, would be pretty much the same as my grass whining; Give it some direction.

Myessss...