The game is collected from different assets that are not compatible with each other. The gameplay is boring, standard. Another platformer, nothing new. I'm bored to play it. Why do you think I should buy (you sell it to me at the competition) this game? What is it about her that I choose it from a thousand similar ones?
I feel a lack of experience and a lack of understanding of how games are made. I recommend to read more about it. Learn game design. But basically you need to analyze the best platform and understand why they are.
The game consists of the following elements: - gameplay (control, mechanics, balance, systems, etc.) - history (setting, characters, events, history, texts, etc.) - picture (graphics, style, sounds, music, effects, etc.) - technologies (game engine, technologies used, instruments for playing a keyboard, gamepad, microphone, etc.) - overall quality (team experience, team size, ability to use technology, etc.)
Understand your game on this element. Understand the best platformers on these elements. Study, analyze and eventually you will understand why they are so good.