I think that he looks great.
Good job. The only thing that I do is cut a bit more hair on the bum below the area, on the sides. lol, this was our evening last night...Hot Rod has been having issues the last couple of days getting poo stuck on him. I gave them both a bath and a much needed trimming back there.
Also, I think that this is a matter preference, but I hold the tail up (on Hot Rod) and pull the beigey hairs down and trim that away. So basically all he has are black hairs on his tail. Maggie is silver and tan so I just leave her alone.