It makes me think of the intermediate heavens the Bible speaks of, where principalities and powers are revealed to be at war with mankind.
Here is a word-search link -
http://www.biblegateway.com/keyword/?search=Principalities&searchtype=all&version1=9&spanbegin=1&spanend=73
Also, the whole idea of snakes harkens back to the curse on the deceiver of men in Genesis 3:14.
The picture gives me the shivers!
There you go again, giving snakes a bad name.... Not sure why a snake was used as the symbol of evil in the Genesis legend. I much prefer the Asian view, where the serpent is the symbol of wisdom.