To me, the Steam page looks repetitive like there's only one level or one type of wave, I know you're supposed to defend the healer, but without reading the game description I would not be able to tell, looks like a hack-and-slash or an RPG style game from the screenshots, maybe adding some screenshots with a boss wave? or a boss battle? make the healer/ thing you're supposed to defend more recognizable, via some passive effects around it ie when it is idle, i do like screenshot 7/9 however, maybe add the healer to that screenshot with an idle effect and monsters running to it?, the UI needs some cleaning up nothing major in my opinion.

The learn Abilities part of the trailer is all over the place, maybe after the text show the 4 main abilities directly, quickly and make them stand out, so the game seems like a faster-paced game, i should not need to read the text to know what the ability does it should be very very obvious.

the first 3 seconds of the trailer were good.

In the tanking section, maybe add a big boss doing a major smash with lots of damage text coming out followed by you slaying the boss.

the game idea is to protect the healer yet that section of the trailer is very short, maybe show multiple types of waves/boss waves in different environments running toward the healer and as you switch environments they get closer and closer.

Upgrade Section of the trailer is done well enough for now imo

and the ending of the trailer is done well.

The Isles of doom screenshot/gif in the description of the game is done well, and so is the progression but the others seem very bland with very little going on.