Totally awesome! I'm loving the grittiness of texture you made by the high contrast of that black. Really amazing style here.

Words cannot express - oh wow, someone said that already

Despite that, I am in love. So detailed yet with so few colors..

I love NES RPG-style towns and caves. You managed to cram a lot of detail in these, but they ring very true to their inspirations. Thanks for posting.

Words cannot describe how much I'm in love with this 

 i agree with surt on everything he said. I'd also like to add that you could bring some of that blue into the top of the wall (some). excellent excellent IMO

Oh ho! This suprised me! Very well done.

This is great. I would love to play a game like this.

Thanks guys :)

Damn, I love those houses!

My one criticism would be that I don't think the grass between the cobbles of the path works. The green of the grass blends with the grey of the stones for me. It be inclined to stick with just the grey and brown cobbles and dirt tiles.

 very good work. imo colors in the cave are perfect.

wow ,that's great , very stylish 

This is good. The sprites are really nice. The tiles work really well to give me that NES feel of Final Fantasy. I would love to see some more mock-ups using these tiles. Heck, I'd like to see a game made with it.