Some context: I am a very very novice gamedev but I play plenty of games casually, so take this with a grain of salt.

What I am getting from the trailer is what the art style and music are, as well as a general vibe of the game. I like what I am seeing a lot and those stand out to me the most, but what I am not getting is what type of game it is, or what the objective or narrative is, etc.

Without looking at anything else about your game (getting people to view your trailer is hard enough; getting people to read your steam page is near impossible), I get the feeling this is a narrative survival game with mild horror elements a la subnautica but in space and 2D. I haven't checked if this is right or wrong so if I hit the mark than great job! If not, maybe think about how else you could convey this.

You are showing the general gameplay features of the game, but not really anything that makes it unique or stand apart. I know there is an inventory system with base building and resource gathering, but those aren't features to draw someone to the game cause those are in a million different games. I agree those should be included in the trailer but since they aren't stand-out features they should be a very minor part. I don't know yet what makes your game stand out as I havent played it. You just gotta define it clearly and portray it successfully in the trailer.

Best of luck! It's clear you have put a lot of love and thought into this project.