My 2 Rabbits have been practically wild for over 3 months - is that ok?

My 2 Female rabbits - Holiday and Crabbit, roam around in my garden for over 3-4 months, they have a big shed, aswell as a double decker hutch with plenty sawdust and hay and food and water. they look so happy in the garden and When it's bad weather, I just let them in the shed. My shed is joint onto my house and their hutch is in my shed. the shed is warm, and the rabbits just act like they're wild! i put flea and tick medicine on them, wash their coats with rabbit shampoo as much as i need to, and i think they're in paradise! they even make burrows in the soil! I have had gardeners checking for poisinous plants reguarly and my walls in my garden are about 5 foot so they DEFINITELY can't get over and i've had things put into the ground so they can't burrow under and escape. They seem to LOVE their life, do you think so to?