A couple of things;
1. The design you have now looks more like the Apollo-class from Star Trek: Legacy. It's clearly inspired by the Akula, but in essence it's just your lower pylon mirrored across the saucer.
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2. The Akula-class as designed from KA has a very distinct 2-step upper pylon and a fat lower pylon that connects to the photon box. The "canonical" design has a blunted rear end, but I can't see why this unit can't be swapped out for an oversized miranda module, where the rear deck could be used for rear photons and mine laying.
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(Why I bring this up is because the Akula design is pretty distinct and is one of my favorites. If it's rendered, I'd like to see it rendered accurately over being an Apollo).
I see. I might skip the Akula for now. I found several different images of it so I just figured I could do my own thing. But on closer look, there's a clear distinction between the Akula and other variations that use the same nacelle config. That is a larger project. I'll do the Jupp next then.