First, I like the first design better than both of these. Not saying they're bad, but they don't fit with the theme.
The second design with the curlicues looks a bit busy, and with metallic ink, well - I dunno.
The second is a little more angular/industrial - and you could easily make it a two-way back by instead printing "ultra ape" on the upper and lower parts of the center bar facing in opposite directions instead of just once in the center.
Stick with the ape backs on the big diamond pattern. Make the diamond pattern look like leather-padded walls/furniture, complete with stitchwork. If you plan to make the padding three-dimensional in appearance, you'll need to use a "light source" from one position/angle on one half of the back, and from the completely opposite position on the other half - unless you'd rather have a subtle one-way back! Considering you're aiming at a poker market, I would advise against any kind of one-way back.