Just some stuff I've been playing around with...

[Atolm]

Some Fed Sketches:
Crux-Class


Irwin-Class survey ship

Trident-Class command-cruiser

Federation DN concept(with a klingon prison barge idea):


These next ones are TOS and later TMP versions of a Romulan copied D7(rather than them just using Klink D7's, they stole the plans or reverse engineered a stolen/disabled Klink D7):
First the ideas of the TMP RD7:


this next one I kinda de-evolved the TMP version of the idea to a TOS version(also tied-in some TAS into it too):

Closer "head study" of the TOS Rom copied D7:

Here is a Command Cruiser variant of the TOS RD7:

Further evolved Rom D7 lineaged cruiser:

[Shadowfleet]

Creativity like yours is truly humbling for those talentless goons like me. You continue to inspire my imagination with every work of art you produce. Thanks for sharing.

I really like the Fed DN Carrier, the klingon prison barge, and the new evolved Rom D7.

I hope a talented modeller turns these into a reality soon.

[Atolm]

I dunno about all that, but thanks, thanks a lot.

[Chris Johnson]

I do have thoughts on this, but right now a prevailing question pops into mind. When I saw the first design (Crux), and specifically its engine design, I have to ask this: Did you get any inspiration from that 2008 Star Trek trailer or from something else, or...? It just seems reminiscent to me, that's all.

[Atolm]

Nope its based on the nacelles I've designed before many a time