I think both of yours look like what my LFS sells as "Emperor" ID sharks, I'm guessing that's the Sanitwongsei species. Great looking sharks fishes and Sarcosuchus. My LFS has one of those about a foot long, maybe 15" and the dorsal fin is HIIIIIGH. Unfortunately it looked like it got the crap kicked out of it
I'd be tempted to get one of the smaller ones they're selling but mine hates other cat fish except for plecos. It killed 2 five finned columbian "sharks" and a couple weeks ago it killed a tiger shovel nose.
I'm hoping once it hits around 10" I can put it back into the 120 and not have to worry about the ornate picking on it. It's weird because I have some little cons in the 120 that the ornate could eat like we eat pieces of popcorn and she totally ignores them. I put the shark in and she goes into stalker mode.