Here are a couple more 'concept' ships I made for different forms of Captain Kwok's race.
The ship on the left is a 'Geezoid' frigate. The Geezoids were actually the true race that Captain Kwok belonged to, well at least when I created him back in the day. The ship on the right is a 'Rukbat' escort, basically I thought Rukbat sounded more serious that Geezoid for Captain Kwok. However, neither shipset panned out. The escort is also a low quality render, it seems I don't have the textures left anymore, just this old image.
If you are keeping count, Captain Kwok has been a Geezoid, Rukbat, and now Juprup, not to mention a honorary Federation citizen. Who knows what is next?