I'd assume the art is AI generated, based on the fact that the animations are low quality and the UI clashes so heavily, plus the fact that you seem very quick to say it's your own. Regardless, it's not good, as the colours blend together and just about no danger is clear. The platforming is fun, but that doesn't matter when I don't know what I'm supposed to jump to. The loses were very confusing too, as the game just cuts back suddenly to the menu.
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The graphics aren't AI generated they're my own work, and I put a lot of work into them. At first, I started drawing the background graphics and so on, but it took me so long that I couldn't create a more advanced walking animation because I ran out of time. I also didn't choose the right color for the jumping platforms, and I understand that's my mistake because the player doesn't know where to jump. I apologize for the menu screen and for the potential confusion, but if I create a new project, I'll take note of it. Thank you for your feedback and comment :)