That's an interesting remark, and it's quite saddening that you cannot pinpoint what bothers you with the characters style, that would have been a tremendous help haha
Having another stab at more clearly identifying it, I think it's the cartoony look and clearly foregrounded positioning implying that your character/avatar will be an important part of the game, combined with the nods to another genre going on in the background.
Had a quick look at the store page, and it looks like planet development and construction queues are an integral part of the game. Maybe foregrounding some interesting planets might be a better idea? Either that or going for some more clearly sci-fi character looks rather than just vaguely aristocratic.
EDIT: Sci-fi GSG example:
