Nice tower defense game! I think what was missing to make this really great was some juice: sound effects, animations, projectiles - something to make the attacks, deaths more readable. The tutorial was nice, but having it spaced out throughout gameplay would help understanding stick better versus unloading all at once. Also HUD would cover some of the battle action so I couldn't see who beat who. But it's a good entry, especially for your second jam and solo dev'ing!