HI, Thanks for your entries. I like very much your designs!
There's not alot of changes I would make as I think they work well but I am going to be picky and ask for a few modifications from you because I think they are very good;
1. The second design down, I would say on the mobile on the right hand side, if you could put a Twitter screen, maybe a Twitter conversation, but that it is obviously Twitter
2. The bottom design, I would like at least 1 football(soccer) player as the main target will be football but we will also do the other sports you've shown as well.
3. Maybe try using more real top-level sports stars in your images and see how that looks
4. I'd just like to see 3 new designs from you as you obviously have talent for this and I'd be interested to see what else your imagination can create.
Thanks for your time and I look forward to seeing your modifications.