bridal party question

My bridal party is kinda small:
1 MOH 1 best man
2 BM's 2 groomsmen
1 jr. BM 1 jr groomsman

my question is-- my jr bridesmaid will be only 8 yrs old
the jr. groomsman will be 15 (and starting to look grown up)

Is that going to look too strange-- having them walk down the isle together?

If not-- then great--

If so, maybe I'll have the girls walk in alone and the guys can wait at the alter all together?

What do you think? please give me your opinions.

I am kind of doing the same thing.
1 MOH, 1 Best Man
1 BM, 1 GM
2 Jr BM & 2 Jr GM

My Jr BM will be 10 & my Jr GM will be 16. I think it will look fine. I would not worry. If you want you can have the Jr GM walk down together & then the Jr BM.
I plan on having them walk together (Jr BM & Jr GM)

-Kris