I would get a totally stock ROM of Jelly Bean first. The whole thing is very uniform in its thematic approach.
Is it? Of course I will try it. The stock ICS layout is so slick in operation, but aesthetically I veer towards the more austere look. I am a big fan of folders, I love grays, blues, deep greens and simple, uncomplicated icon designs. I replace the icons with the theme icons that better match this look. Which brings me to my next question...how are you getting those screenshots? Are you using ScreenshotIt?
EDIT:
http://www.xda-developers.com/android/jelly-bean-for-the-acer-iconia-a500/
Doing that right now....
RE-EDIT
Um...no.
When a developer here on XDA is credited as having helped with not just one, but two Jelly Bean ports for the hottest devices on the market, people start to notice. XDA Senior Member randomblame has not only succeeded in doing that, but also in making his own port for the Acer Iconia A500, leading it to claiming the title of first non-Nexus tablet to have Jelly Bean.
Already on it’s second version (damn he’s fast), the only things not currently working are:
No audio
No wifi
SD card
USB not mounting flash drives
Deal breakers. Ill wait for his next build.