Thanks.
It's actually inspired by a fan film I saw 2 years ago. But also by some neat design from the comic books (especially Heir to the Empire, a French guy made this) like the Dominator.
I made several sketches.





And in the meantime made a structural shape out of plastic sprues (my original intent was to make the layers of the ship using the layers of the sprues, plus some plastic card parts mostly cut out of... sprues
).
But I began with that. A kit badly painted, with the command bridge missing. A friend gave it to me knowing I can do something out of it.




So then, sprues and B-52 wings...






All made in one or two nights watching bad programm on tv.









Finally I made up my mind with a mandible area in the front and began to made this...








Making the Command bridge was a tricky part. It's way too big but, who cares ?
Here, with all the blue, red and white colors from the Zeta Gundam kit, it looks like a Lego building 




After one week and more detailing it ended up like this...


