As Jane says, Summer has recently started developing her superpowers. A later episode will reveal how and when this happened. Steve has no superpowers, he's just big for his age. (He plays football ... offensive line. His sister tells him he's got the "offensive" part down pat.)
I'm learning to do new things in Photoshop! I drew the house separately, and superimposed the other characters on top. It was a major pain, but I hope I got the proportions and perspective right.
Drop me an email at firstname.lastname@example.org if you have any questions, comments, suggestions, or constructive criticism. Seriously, I would love to hear any feedback. I've only got one reader that I know of, and she's a co-worker. (Hey there Heather!)
I'm currently working on adding character bios. Next update coming on Friday.