How the heck did you find this, UR? Randomly typed "high quality tilesets on obscure Polish sites unaffiliated with J2O" into Google? Actually, that would be funny if that's what you really did. Anyway, that is a very nice tileset. Indeed, those sprite animations are some of the most fluid I've ever seen, and those edits are high quality as sprite edits go. Being somewhat experienced with manipulating and modifying sprites (mostly Mega Man related) I can attest to the fact that Jazz sprites are really hard to work with and get decent results, so I applaud Mr. tileset maker for that. So, yeah. And etcetera.