The clusters, colours and GUI are great!
Can't wait for DS3. :)
Thanks dude, I really appriciate it. It's the first time I've been featured there, so it was a real honor. :D
I really need to check newest pixel art more often. This totally slipped by me, but I noticed it on Newgrounds. I absolutely love it. There could be a darker atmosphere to really convey the feeling of Dark Souls, but this is still excellent.
By the way, congratulations on getting your piece featured on Newgrounds.
The background and ground tiles are very impressive, really great work here. I like the colors on everything a lot. The UI is pretty good too. I just feel like the anatomy/pose of the characters could be improved quite a bit and they're detracting from how good the rest of the assets are. The bonfire could probably be rendered better as well.
The pose of the left guy is pretty weird. He appears to lean forward. Background is great, colors are appealing and right dude looks good. The shield looks a bit wonky and it's insignia seems to be misplaced little too much to the left. Also the characters should really cast shadow to the ground so they wouldn't look so out of place!
Overall, I like it.
Not dark enough. 
Looks great! Very attractive colors and comfortable composition. The background is a little too flat and all mixed up, although I don't think it interferes with the playabiltiy. One thing you should be really concerned about if you plan to keep this up is anatomy. The right dude is almost ok, but the left one looks really weird.
@Mandrill - Dude, the hype is too real for Dark Souls 3. When I saw that Giant Skull rise up in the last trailer I lost it. xD