Pixel Background for Spring Fever

Back in April 2018, as part of my Video Game Development Club's annual Spring Game Jam, I teamed up with friends to create a small pixel platformer... or bullet hell? called 'Spring Fever'. In the game, you play as a nose jumping around dodging falling pollen and silkworms.
I made everything but the tree. That was someone else, but I don't have a file without the tree.
I hide a few Easter Eggs in the clouds like the nose protagonist, a heart, a rice ball, and the annoying dog.
Let me know in the comments if you guys see any other cloud shapes.