I think I qualify here on the forum as the CARD GUY and would want to see one in hand before I can give my opinion on it. That said, they do appear that you spent a lot of time on design
They measure in at 64mm x 89mm which is as close to poker size as i can get as my silver supplier can't cut .5mm. They have a nice amount of heft to them as well. Tjhe original design didn't have a 2 way back on them however to make it as "Cardy" as possible, i changed it.
Good choice going with a 2 way back, keep it Cardy