Story Cover Image

I'm new to Mibba and trying to post a story. Everything works great, except I keep trying to upload a cover image and it won't show up. I've gone back and tried to upload the same photo several times and nothing happens. It's just a blank, white box next to the story information on the Homepage › My Mibba › Stories page. Please help?

@ Lily Barnes
It might be the image type or that it's too big. Maybe try resizing it and ensure that the picture is either jpeg or png (they're the two I think work best) before trying again.

@ Mr. Darcy
Thank you, that fixed it. I didn't realize how big the picture was until I opened it to edit it.