When playing the game one can clearly see hard work put into it! Really great job!
If I would have to point something out it would be the art (both graphics and sound + music) it's not bad but it doesn't feel consistent. Trees, plants and so on seem to be completely 'from the other world' than e.g. the tileset. Similar thing about music and sound - they seem to be slightly different styles. Unifying them would make huge difference! The game would feel much more polished :)