A big issue of this game is that it neither has an option to pick up coins from the ground, nor it has options to get new ones. I wasted a solid ammount of coins on an early level and realised that I'm softlocked only like 5-10 levels later. Often times I also found myself accidentally placing a coin when swapping with my parrot (speaking of which, I'd recommend giving the swap some animation or at least shortening the time it takes)
Also the soundtrack is really short and becomes repetitive and annoying to hear very early on, so I'd recommend prolonging it a fair bit.