Added to which twin arm launchers are vastly outdated on something as LO concerned as these.
A little background of the where they're from and how far out they have to do their duties would help in pinning down some particulars IMO. For instance my Deity class command/escort cruisers are simply re-tasked destroyers with extra CIC and flag facilities. They're expected to either operate as flotilla leaders or singularly in the anti narco/piracy role for months at a time and they're considerably smaller than the three drawings you've presented. I think if you went to a vertical launch arrangement and looked at AShMs that aren't the size of a jumbo jet you could be onto something much better.
If it helps I did a re-draw of my fictitious VLS system not long ago. Might give you some ideas for size etc. Feel free to use the actual stuff too if you wish.