I like the visuals. The animations work well. I like the tigersnake idea and visuals. I really had to "train" myself that you could cross your own tail, but I think that was a very good decision to allow.
I'm not a huge fan of the gameplay. The concept is nice. But I don't really feel "in control". I don't know the range/damage of the towers. So planning the path is sort of a wild guess. The execution phase also quite long, and that's just waiting for the result. And then after the result, it's hard to analyze what I could have done better.
Also, small thing, games that require to switch between keyboard and mouse interaction can be annoying for some people. Works fine for me on my laptop, as the touchpad is close, but with a mouse+keyboard is breaks the flow.
Overall, I think it's a solid 7/10 for a jam game, good job :)