I like #14 the best. I was thinking maybe a white background and possibly the Avalon above the Sound Inc but both still to the right of the dial. My only other comment would be to have the white mark on the dial at the 7 o'clock position where the blue highlight ends (if possible). All in all great job and rank will certainly reflect such.
I really like what you did with #17. Maybe the font just a bit bigger to look in scale with the image. All in all great job.
What would be your suggestion if I needed to silk screen this image onto a black road case? Can't really silk screen shading and it is just a white ink screen, no multiple colors.