What I find really impressive about the above comparison is how everything of the left side looks like a twentieth century factory of some sort (in one or two cases perhaps a milking shed) and the other side looks futuristic. How the heck did you do that?
You know, once you stop counting pipes and tanks (which is like observing that a chimp and a human both have arms and legs) and just look from one side to the other, you would have to put on a welding mask and close your eyes to get the impression there is a comparable degree of apparent technological advancement. Or are you actually saying you don't see that? That to you, the left side appears just as "advanced" as the right?
I thought it looked a lot more like a real engine room than anything we saw in TOS.
I believe there's a reason for that.