The guns look very nice. Crew figures look good, too! And the terrain on the bases is well done. All in all good detail with lots of "character".
One minor point on the description in your blog, though. You say: 'These are 3", or 90mm, American anti-tank guns by Arrowhead.'
The 3-inch gun was not 90mm. 90mm would be 3.54 inches.
3-inches is 76.2mm, although the M5 gun you have modeled was never called 76.2mm in US Army Ordnance parlance. Nor was the M7 gun, which was the main gun of the M10 tank destroyer and M6 heavy tank. The only correct name was '3-inch' for the entire family of guns derived from the M1918 3-inch AA gun.
The replacement for the 3-inch family was the 76mm family of guns, as used in the M18 tank destroyer, late production M4 Medium and several subsequent tank models.
The 76mm guns were also never called 76.2mm in USAO parlance. There was a fair bit of discipline used in writing or speaking of the two families of guns. They were considered different calibers, as the cartridges were not interchangeable.
-Mark
(aka: Mk 1)