First, welcome to tigsource!
Second, adding some screenshots may improve the odds of getting people to test your game. Here are some other tips:
https://forums.tigsource.com/index.php?topic=67840.0I have played your game (am playing now) and here are my thoughts. I'll make it short. If I sound a bit "direct" please excuse it (no harm intended). Thank you for sharing your game
1) A minor thing but your itch page asks for donations (nothing wrong with asking) but this means that people will see another page before they will get to the download. To those unfamiliar with itch it may look like a paid game because "pay what you want" (which is the wording itch uses) does not exactly mean "free".
2) I started it but the language seems to be, erm, Russian I guess (the title is in english but the buttons are not)? I don't speak russion so I'll try to guess my way through the menu :D - oh okay, 2nd button is "quit" - Let's restart. - ookay, even more russion text. I guess that's the level select screen, right?
3) I got past the "roses" level (the first). Once I reach the flag the screen changes. The "greenish" button is barely visible (seems to be too far to the right, out of screen).
4) The mouse seems to snap onto the platforms. That's nice because it makes the jumps a little more forgiving. Maybe you can tweak the animation a bit, it looks a cut off some times.
5) I would like to have a little more "air control/air movement". Sometimes I jumped and already knew I missed but could not correct.
6) A button for immediate restart would be nice (shortens the fail/retry cycle).
7) My cpu/gpu got quite loud while playing. Not sure but maybe look into the profiler to check out the performance.
Hope my feedback was helpful