Very doubtfull. Those photos dont show anything either. looks like it could even be a mix breed.
I dont believe.lionheads are a showable breed yet except for more "just for fun" type things.
Definitely looks pet quality and theres nothing wrong with that.
No he's harlequin and he doesn't look show quality from the pictures provided, he can't be shown anyways because REW and Tortoise are the only variations accepted. Here's the standard for showing a Lionhead: