I like the new banner and "outline" design; it looks smoother and cleaner. Dislike Arial, but I'll undoubtedly get used to it.
I think the edit, quote, multiquote and quick reply buttons are too big and round. A smaller design could be preferable, and the speech bubble icons with them are just way too big. The new report post button is much better than the last one, though. Much tidier; it looks like it belongs there.
The star on the 'watch thread' button and on the bottom right by the "meet the mods" panel genuinely does look like something sent in to Blue Peter. I feel like the website is patronising me whenever I look at it.
I like the little dudes with eyes. I think they're cute.
Edit: Also dislike the default avatars as well. The differently coloured speech bubbles are pretty ugly. The blue on blue and blue on green look alright, but who thought orange on green was a good idea?
The white background in the avatars conflicts too much with the grey and is a bit of an eyesore.
Edit 2: After having more of a look around; the white background isn't too bad. Looked at a few more blue-on-blue ones and it looks pretty good; I think it's some of the alternate colours that's putting me off.