Here's some tiles I started. I haven't really pixelled in a while(been caught up in scripting) and I haven't pixelled since I got this new LCD... so colors may be off. Here are some notes... first off, they're not finished off course. Mainly just the cliff bit is done. The grass stuff was supposed to go on top of the cliff... but since I did those first I've noticed it doesn't look right on there. I'll have to redo them. Lastly, these are meant to be cartoony/simplistic in style, so I doubt I'll be adding a lot of detail.
I think they might be a bit too unsaturated, low in contrast, and/or bright... it's hard for me to tell so I'm not sure. Right now I don't think I'll have any use for them... so I might add them to the free tiles list.

And for those curious, here's some... probably non-helpful, skippy progress of the cliffs:
