I have been somewhat lax in my commenting this month so there's a lot to catch up on.
Rather than each individual post, I'll comment by person, in the order that they first appeared (since my previous last comment)
Joe Bun - a groovy rendition of Allred's RR7;
steve-O - The reworking of your Nexus works well, and the Cosmic Spiderman was just plain wierd (in a good way);
porcelain - Fantastic portraits of the Red Dwarf crew (the Duane Dibbley being my favourite);
ANGRY BEEF! - You've been very prolific this month, with a lot of great portraits of space girls. I think my favourite was the animated version of Starfire;
shadoes - I remember seeing those before, in the Star Wars Jam;
diddle - I love your Super Skrull vs Thor;
drewng - For want of a better word, your Ben Grimm and Johnny Storm was, well, fantastic (although I'm not keen on the photo background);
Marcelo Di Chiara - You've really outdone yourself this month, Marcelo, producing gem after gem. It's hard to pic a favourite, but probably Space Ghost (so cool) or Gravity Girl (so hot);
IMForeman - The rendering of the Surfer, with the reflected light on his skin and the black spotting, is excellent. He really looks Silver;
Unoriginal Bastard II - Great depiction of the creature from This Island Earth, a classic movie;
Ritalin Smith - Very cool Kree Captain Marvel (love his sneaky expression and the big boots);
Hack - An awesome bunch of illos, Robert, the Cybermen and the Dr Quatermass being tops in my opinion;
Mr Imagination - Another of this month's top posters, with a great variety in terms of genre (cartoon, manga TV shows, comics) I think my favourite of yours this month was the Lion-O;
AgentHelix - Your Darkseid totally kicks ass, Brad;
mpsindustries - That Ultra is so cool and stylish;
Jollyrodgers - Great name (Captain Mushface), great character;
demetrius - I'm not familiar with Shuma Gorath, but I like the fluidity of you sketch a lot;
chobot3000 - Beautifully Kirby-esque Orion;
bnoberini - Great Johnny Raygun sketch;
wignke - Not familiar with either Bee-man or Jigsaw, but they look like fun characters from your fantastic pic;
Global Nihilism - Pity the photo's a bit blurry, because this Obi-Wan looks very cool;
Cyrano_One - Great comedic take on Galactus (I like the one with the drool best);
JRO - There are some proportion issues, with his right leg in particular, but your Thanos does look suitably mean;
Kool - I'm really liking the contrast between the dark of Galactus and the light of Nova
I think that's everyone.
I had hoped to get a more finished version of this done, but didn't get the time, so here's a quick sketch of Galactus:
