Can't really say much for the first cover. I don't know the meaning behind the colors and what each thing represents lol. It looks like a comedy show wall plus the colors remind me of the police near 2 criminals about to egg someone. So it can be either that or a comedy show. But it does portray comedy.
As for the second cover.
Uff no idea where to start. It is missing so much stuff it looks more like a screenshot of the comic and not the cover. I would suggest using my list to remake it.
Choose a background that makes her look more superheroish. Maybe add a bad guy looking at Elsie who is about to fight.
You don't have to make the cover like a typical superhero cover but you do have to help your reader see it is about a superhero.
You might want to add her over a steampunk flying ship. Make your reader know it is steampunk. I would also make her clothes more steampunkish.
The tittle needs to be another color. You need to be able to distinguish it from the background. I would also add gear clogs to the tittle.
If I may use some examples for the fonts I would suggest to use the following for inspiration:


