All I have to say: artstyle - good, gameplay - bad. Well there are actually a lot of things that make your game much worse it actually can be:
1. Getting more debuffs from enemies. Why? Player kill enemy so he should have a reward (I saw some of the buffs but the idea of getting debuffs from killing is bad)
2. Explaining things. When I saw menu I wanted to saw that game gives you simple and nice hints how to play. I went playing and didnt understand a thing about creatures and debuffs at all
3. Variety of enemies. I know it's all about how much time do you have, but all enemies have same melee damage (maybe I didnt see any projectiles or other types of attack :/ idk, please tell me if there are any) and I saw only 4 of them
4. Variety of other things. It's not about enemies only, the game is simple tower devense with literally two ways to defend: collect towers and hope you'll get lucky or just kill them by yourself and that's infinity loop of doing the same things. I think average player will get bored after 3-4 minutes
Well, about artstyle now: personally I didn't like it, color pallete is nice but for me it looks average. I won't vote low score on visuals because it made good and I see amount of effort