This is just my character submission, you don't need to follow the way I write it.
Meet Greg Stellow, and his brother Ivan Stellow.
Greg is twenty years old, and Ivan is only sixteen. Greg stands 6'4 off the ground, and Ivan is a few inches shorter than his brother. Greg is very active, out at concerts, playing football and sports so he is very built. Ivan is skinny, ,but not very toned. Greg thinks about most of the negatives to every thing that happens to him, causing him to seem fairly depressed. Ivan is one of the happiest people you can meet, until anything completely traumatizing happens.
Greg:
Ivan: Ivan has no hair, he completely shaved it off so he can be different. He has a face that if fairly sharp at the jaw and dark brown eyes that always threaten with each glance.
The brothers haven't gone through much, mostly just a few break ups, some ups and downs in life. Nothing too harsh.