bob, while I have nothing against the fact that somebody else work on the same things I'm already working on (I'm extremely SLOW and I couldn't grant when I'll have finished it), it makes me a little upset to don't get advised, since I hate to waste time. You knew that I was working on a deimos too, and if it was your intention to do the same you could have PMed me: it'd have saved me from wasting some time recently;).
anyway, getting to the model:
awesome result, althought I partially disagree with some choices.
The part that I like less is the bulky front ventral section. In my opinion it should have been something like the ventral section of an ancient galleon with a more linear and curvy designed. Well, in my opinion all the deimos is inspired by a galleon and I was working in that direction, diverging a little more from the original.
The extrusion on the nose is probably a bit blocky
The rest is pretty good;)