I liked the steadycam shots in the parking lot, as the boys are walking. And the party scene handheld stuff.
I thought the young actors were very good and you got great performances from them. The doctor was a bit weak. The older Mexican cousin delivered in some scenes and struggled in other scenes. I didn't buy the older white brother as being so tough...he was a bit too small and thin for me.
The fight scene choreography could have been a bit tighter and could have used some more punch/kick sounds.
Good story, but audience knows early on that something is going to happen to the little boy...
But again, this is an excellent job and you should be very proud to have done a 32 minute short. Give us some production notes--how long to shoot, budget, crew size, your role, gear, etc.