The game is really well planned, you have a lot of content like skins and the piggy bank that keep the player engaged. I think the gameplay was also well made and I had a lot of fun playing! The sounds were fine, I couldn't hear any movement/switch line sfx, i think that would have brought even more to the experience! The visuals are also really good, the menu UI gives mobile vibes, but in a very professional way.
However, I personally think making the lines wider could feel better, since you have so much screen space, and it feels like you barely move. And especially for the first biome, sometimes you can barely see where you need to move because it spawns way too many trees at once and they cover the whole screen.
For the world generation, the first biome felt like the hardest one. It would spawn trees so close to each other that there would be no way to dodge them and block all 3 lines. Also, with each biome the gameplay would feel easier: forest - the hardest, lots of objects to dodge, less vision;
desert - less objects to dodge, lots of vision;
sky - almost no objects, you wouldn't even need to move for a pretty long time;
Anyways, I think you did great, it's a completed game with lots of things to grind for, lots of engagement, everything is put pretty well together! Amazing work!