This is a very challenging game, but I really really like it! Love the mechanic of blowing to control your own hot air balloon. Amazing use of the limitation. And the player sprite is SO cute🎈
The first level was definitely the hardest, but I was able to beat it and win! 
If you develop it further, I imagine making the controls a bit tighter would make it incredible. And maybe making a slightly easier first level so I can practice the controls LOL. Amazing job!