hey- great work so far!
I'd really like to see #12 tweaked a little bit. I said I wasn't sure about the horizontal orientation but apparently I do like it! haha
Anyway, could you take #12 and put a more bold border around it? then maybe use the font from #17?
The thing about #19 is the landscape is too flat. The details on #12 make it all work together...
I'm going to send you an email with a link to a logo I love...