Good for you!
This is a very nice cockerel for his age. I'll be interested to see how he looks in 3 months. I wouldn't worry about his weight at this point.
She is looking nice for 3 months also. I would check her wings and make sure they fold correctly. She also needs to mature. Give her another two or three months to see how her tail and stance change.
Thank you for your input these are my first non hatchery/non mutt chickens, so any critiques or pointers in what to look for are welcome. We won't be showing anytime soon, but I hope to start showing in a few years when my boys are older.