here are some pictures of my friends horse, could you take a look at these pictures, she is doing ridden hunter, riding horse and novice horse pony, do you think he would be ok for these classes?
Depends how well they want to do! Unlikely to do well at ridden hunter as the horse is too light but looks good for riding horse. If it is a bit of fun at a local show, or out for experience then go for all 3, but if they are going to be upset if they do badly avoid ridden hunter.