Great to see this finished. I think we were almost as eager to see it completed as you were!
I love all the recessed details - it feels like there is something in every nook and cranny. You've also successfully avoided giant box syndrome. The Manticore has lovely curves! While I was admiring the exterior photos, I said to myself, "The guys in the windows are just to give the illusion of an interior - there can't possibly be enough room for a functional interior." I'm thrilled that I was wrong. I'm not sure why the 'playset' features are so necessary, but they sure are purty.
I will say that it feels a bit small for a "death machine", but them is the breaks when making a SHIP in minifig scale. I also question the necessity of the fighters. Although the hanger bay looks awesome, they don't seem to fit the overall design. However, these are just nitpicks. This is a great moc no matter how you slice it.