Hi,
i played the first 5 levels of your game. This is what I found:
- I had a bug in the tutorial where the next step was not triggered at some point. When it continued are had already built almost everything. But it was not really a problem as I found the controls intuitive, I had no problem to figure everything out even without explanations.
- Regarding the "pacing": I never had any downtime at all. I always went for a very economic build: get a lot of carrots & workers first. Then build defenses as late as possible. That worked out well without any downtime.
- Difficulty: I found it too easy. I mostly managed to launch the rocket on day 2. So I had only to defend 1 night. And those fights were never even close. I never built any walls, never upgraded the fire. I just built 3 sniper towers and upgrade them. That was more than enough.
- UX/Controls: Very good, everything is intuitiv and easy to understand
- What you could improve: allow to adjust the difficulty, maybe a global setting to hard/very hard mode: more enemies, more waves, more versatile enemies that need different treatment (like swarms of small enemies that need splash towers).
- Graphics: I like it, bunnies are cute :)
I hope that helps a bit.