Greetings,
Mr. y. You have a very competent engine installer, it appears. Stout bracketing.
The only "criticism"/observation I might offer is to weld a tab on the support brackets for both the hydraulic and wash down pumps, inboard, standing proud of the slotted bases. This will make it much easier to lever against the base of the pumps to tighten the belts.
Is the serpentine belt easily replaceable without disassembly of the belts on the two front pumps? I can't quite make out the routing.