Interesting to see where this is going. Not to sure about the shape of the saucer, or the scale of it, but I do like the overall design sofar.
I'm not sure about any of that either!
This is one of those deals where I feel like I'm channeling another artist, and I' just as surprised as anyone else to see what turns out!
Do keep going though! The secondary hull and nacelles are very nicely done.
Usually I'm not one to suggest what a designer can/should change, since I hate backseatdriving, but if you'll permit me....?
A slightly larger saucer, and removing the bulge on the lower front of the saucer might help a lot with the flow.