He does look strong, I just hope it didn't come at the expense of his overall agility and speed. When you're coming up multiple weight classes, it's probably best to go in there near your actual fighting weight. When Ray Robinson was campaigning at MW, he consistently came in at around 152-154 lbs (especially early on.) He gave up some pounds against guys like Lamotta, but his overall speed was intact from his WW days. I wish Brook the best, but if his idea is to go in there and try to hurt a guy who seemingly hasn't been hurt by full fledged MW's in the past, than he's going to be in for a rude awakening. I personally don't see it going past 4 or 5 rounds TBH.
Brook is going to be tired as **** from all that weight he's kept on by bulking up. If the fight lasts that long he will be spent by the 7th round.
Remember Mike "Hercules" Weaver? He really did look like Hercules and he got knocked out.................