We can’t really give you feedback if you don’t provide more than a screenshot, sorry if it sounds like I’m being rude. Do you have like a video to showcase some gameplay or maybe a link to the game?
i’d recommend you to establish an objective for the game. Like finding an exit, running away from a monster or whatever it is you wanna make. Because right now it is unclear what the player is supposed to do.
also add more decorations, because the game looks empty and bland. I assume you’re going for an underground look, so you could add fossils, lanterns, pillars, etc. Just make the game feel more alive.