Neat little idea. Maybe adding a shop or something to buy different types of plants/flowers. As well on my machine there was some weird graphic issue on some sprites it would show a line on the edges
The shop idea sounds interesting, I hadn't considered that before. I think I know what the graphic issue is, I myself noticed it but couldn't figure out how to fix it since I separated the sprites the same way but only had the issue occur with a select few sprites.