Ralf Scheepers is awesome imo. Definitely hit or miss but when I saw him in 2016 he gave one of the best live metal vocal performances I've ever seen. Guy hits high notes like they're effortless for him and he always sounds like a powerful demon no matter where in his range he's singing. He also looks like he could take your head clean off your shoulders with one punch.
And even though he so badly wants to be Halford, I think he's way better than Halford. Good choice of songs Chad. (If I were sending I would've gone with stuff like Nuclear Fire, but I'm curious how Rich will react to the longer stuff)
Scheepers is talented for sure, just what I've heard from him in the past I've never liked much in terms of style, timbre. As you say, he takes a Halford-like approach, and I've never much liked Halford either.

Round 3 first impressions
5. Gorgeously gloomy.
13. Sonically rich and warm – sounds like my kind of thing.
14. This seems to be a gorgeous mix of ethereal and grounded.
Keeping up with my method, I think it's one of these 3
I'm afraid your method has let you down, it's none of those.
#5, I think.
Somewhere in the group of 4, 5, 13, 14 in general if not specifically #5.
Not 5, but it is one of the others.