I like the look of this beast, a very credible looking vessel. I'll like to add that as far as my knowledge goes, a nuclear vessel is always steam propelled, so an auxiliary "get me home" diesel engine is likely.
I also join erik_t remerks about the vacant looking superstructure block, especially when considering that the life boat and rafts are on those levels without any access doors or hatches.
That aside I like this drawing very much
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Thank you Kim for the crest
"Never fear to try on something new. Remember that the Titanic was built by professionals, and the Ark by an amateur"