Eew. No offence - 'tis a fine model, but that deflector on the saucer looks frankly ridiculous - please use the WADE units off of Atra's ships if you can get ahold of them, they're flat rectangular emitters curved to fit a saucer. It'd look much more convincing.
Also If you use the Oriskany, please remember to remove the blue rings around the registry as they denote it as being a carrier (took it from the stock Taldren carrier)