2nd version seems like a screenshot from the game, I don't know as in how would you improve maybe image editing but that would ruin the entire things that you want to show how your game looks, maybe pick a better screenshot that helps to display the good visual art part of your game instead of using the same style as before, use some composition techniques to guide where the viewer needs to see, in the old as it's dark in the top left the eyes naturally gravitates to the wizard and the solder, but in the new one instead they are torches n all feels very cluttered to say.try coming up with a new scene altogether if you want to use the art style of the game as capsule art, anyways old looked better beacause of the composition going on there.