Cute! He looks like he has lots of room to run around. Usually when I have my bunnies out I have a hide for them such as a tunnel or a box so they can hide in it if they get scared. Also, shade is important. Bunnies needs some shade. So if you can provide a little bit of shade while he’s out that would be good for him. =) I wish I had a yard like yours. I have a “Rabbit Run” but right now it’s overrun by weeds because I haven’t maintained it, so when I have the buns out I put up two pens connected in an area of the grass that my dog is for some reason afraid to go in and my rabbits have a blast! =) I usually provide water and hay when they are out there as well. Just some tips. =)