The weight standard for a french lop are usually any where over 11lbs. I have a french lop that is 5 months old and about 7lbs now. They are large bunnies!
Your bunny may not be a full breed French lop or she just may be on the small side for a french lop, and therefore would be disqualified from showing. Weighing less than the breed standard does not mean she is unhealthy. There could be a lot of factors.
Polly looks super cute in the pictures! I cant wait to see more of her, My french lop is the biggest baby and craves attention!