Dennis' back is probably one of the biggest in the IFBB right now.
He actually has high lat attachments, but if you look at his erectors they are fucking thicke, and there isnt a lat spread thats wider then his.
He can add some thickness in his back double bi that'll give a better illusion.
But his main issue is his glutes and hams, they need more size.
If he can improve his coniditoning a few percent and increase the size of his glutes and hams he's Jays successor as Mr.O!
No one in the IFBB has a more pleasing structure IMHO.....