Don't like the mirror image but you may be on to something here. Out of the three color combos I like #9 the best. I also like colors like #ffff00 with #000080 or 000040 as well.
Here's a client of mine's blog with a logo designed here http://www.fresyes.com/ I like the colors, the texture and the typography - and you can see it's somewhat similar to your style. What might you recommend based on that?
Yaia - I also need to keep in mind that I'll need to use these both for a blog header and the square profile image on Twitter - How would you square up #23? (not that I need to now - but thinking I need something that would look good both ways)