Here's a photo of my studio and a diagram showing the rough acoustic treatment.
Looking good! 
I never expected to see a response this good out of a typical LA apartment bedroom.
Not to curb your enthusiasm 
but you need to measure at a higher resolution to see the true bass response. I use either the ETF software or sine waves at 1 Hz intervals as described here and here:
http://www.realtraps.com/art_etf.htm
http://www.realtraps.com/test-cd.htm
This is not to diminish what you've done! I imagine it must sound infinitely better than before treatment.
--Ethan
