Any of them could do B grade [95cm] or higher, given training. I'm not a huge fan of how overbent both the horses shown undersaddle appear to be, but of the two, Harvey is less overbent [in fact not much if at all, though at his young age I would hope to see a slightly lower, longer frame, so I would choose him, personally. He's also younger, and looks more balanced. I really REALLY like Henry's type, but [have seen his ad about] I think he's only just off the track and hasn't really done anything else? The other two both look like they've had at least some re-training, and would therefore be less work to get going well.