Very nice site! I've always had a thing for Andreas Viklund themes. They are very clean. I especially like your subtitles as it really give the site a news type apperance -- which I believe what you are going for.
Overall, colors are good. I do have a few things which seem a little odd to me design wise, but these are mainly personal preference so take them with a grain of salt --
(1) The large white space on the top left of the page seems to draw my eye away from the content. I like your title right aligned, so I'm really not sure how to fix this... very much a personal preference issue though.
(2) Wish I could help you out with the alignment of the "readmore" and the "comments" line. I noticed it too.
(3) When viewing a post with comments, I really don't understand the need to number the comments. For me, it really doesn't add any benefit to have them numbered and takes up more verticle space -- forcing more scrolling. Also, since there is more whitespace on top of the comments than below, it makes the text seem uncentered between the comment dividers. On the other hand, I really like what you've done to right align the author of each comment with the date. Works very well with the news type theme you've implemented.
Overall, VERY good site with interesting subject matter.
As always, just my $0.02!