Normal health check over is needed, look at what he's been fed. He actually looks like a good headed holland lop. I like how wide his ears are at the bottom and the shape of his head, he's at his maturity in growth too so what you see is what you get. What kind of personality does he have? Any cage quirks? Have they had him altered? Have they given him BunnyVac? Ask all the normal questions. Did he show well? Was he purchased as a pet or was he sold with his pedigree/any other papers from the show? Does he have good teeth, nails, etc? Is he of good weight or is he a bigger holland or? Is he a picky eater? Does he do well with moving stress? Has he ever had any GI problems or other health issues? Is he inside only now, litter trained? Are you wanting him just for a pet or ? He looks like he'd make a nice pet, pending the answers to the questions of course. He definately looks like a sweety
Could be a good parts buck, depending on how he looked set up and all. He's not the worst I've seen considered for show but not the best either. He looks like he has good bone, good wide head, wide body, and good ears/head set but other things can't really tell with out him set up (even the "good" points may be off once he's set up, picture angles and distances can make some things look better than they really are). I do not know what your looking for overall, can't recall other posts.
I would take a really close look at his eyes. The picture makes it look like he has a bit of weepy eye or agitated eye issue. This may or may not be the case, could be he got food dust in it or bit of water on his face right before the picture too. The whole idea is to check him over with your hands and eyes in person before agreeing to take him, to make sure he is healthy and what he is pictured to be.
Tattooing is a must for show rabbits to be shown and (in my opinion) any one keeping good records will tattoo all the rabbits they sell or have leave. The only exception I can see is ones that are going to a meat buyer, but even then I prefer to see them tattooed. Why? Well you have a person that is dedicated to keeping a good solid record system (in most cases, not always as there is exceptions), rabbit is easily identified should some thing happen and need to, proof of ownership if need be (take pictures and notes of ear numbers), and allows the rabbit to be shown in shows (if tattooed correctly). Mostly it is to help keep accurate records and show what rabbit is from what pairing/breeding AND showing. It is no worse than having a person's ears pierced and some times not even that with the numbing spray they have out these days.