Magic looks like a nice comfy cat. I don't think his being a mere seven weeks old will do him any harm. Perhaps if you were looking for a show cat -- I don't know -- but as an ordinary moggie to love and be loved he should do fine. It's been a long time since I looked after a kitten, but I don't think any of them came much older than eight weeks and they were all fine.
There are people on this site who've adopted abandoned kits at a couple of days old, and I think they did fine. I believe love and attention is what young kittens need.