Some comments I would make...
1 - your SPG hose is too long, it would be better to get a shorter hose just enough to get the SPG clipped in the waist D-ring, I use 24" (my hose are... primary long hose 7ft, bungeed backup 22", HP hose 24", inflator hose 22" and drysui hose 18", but with a pony, coming from the tank I would say something like 24" or 26" would be better)
2 - instead of a console I would use only SPG in the hose and all the rest wrist mounted (I use botton timer + depth gauge, Uwatec Digital botton timer, but same is valid for computer), as someone already mentioned.
3 - I fully agree with inflator in the right post, as already explained, although not likely to be needed, there is the "free benefit" of having a third breathing place, if you have a failure in the left post and is donating air with the long hose. Also the Drysuit, if not using a pony, comes from left post usually and you should not have inflator and drysuit in the same post (redundancy always in diferent posts, such as primary and backup regs, so you still have breathable reg and buoyancy if one post fails)
4 - because of the above, it is right to cross hoses, as the backup necessarily must be in a diferent post from the primary, which is correctly put in the right post, necessary to route the long hose.
In the pictures, although not my tanks (picture taken from GUE equipment configuration page, if you want to take a look in
Equipment Configuration | Global Underwater Explorers), there are the 2 setups I use, with SP MK25, which is my usual setup and apeks, sealed diaphragm, that I use for cold water (I use also MK17, that can be routed very similar to apeks). In your case Apeks are a good model.
It is my opinion, hope it helps...