I will admit for the first time ever in the H2H I actually ran out of time and didn't get to give mine the full treatment that I wanted to. That said, the things that I wanted to do wouldn't have changed the outcome of my contest. However, I did go ahead and make most of those changes, as you can see in the updated version below, chief of which are the bird and carrot, along with a few minor things here and there.
I am also linking you to my psd file. My final layer count came to (I think) 176.
I did use an image as a reference for Marvin and I left it in the PSD file so that you can see it, but as you will see I did recreate every part of him from source or PS.
Good luck moving forward vokaris, don't hold back!

PSD FIle: http://www.billtvshow.com/public/psc/Marvin_Clean.psd

I thought for sure the alien was painted.

here be mine:

My last chop was not finished yet, I ran out of time like for the 3 first rounds. I didn't want to make the legs & arms similar on both sides, I wanted to make some more details, more organic & weird... but anyway I'm enough satisfied.