Nice remake of my Main idea.^^

seems very hard for zerg, for they need three-hatch just to get the minonly, and the natural with gas is far away and very vulnerable

terran might be best off here, in TvZ overwhelming, and in PvT at least very strong (easily 3-bases)

Cool, something different from standard-layout. That's already a big plus:)

All bases are huge, but red's and greens are getting ridiculous. The way to the choke is quite long, too, making it hard to defend.

You obviously have a problem with pos. balancing too, as blue and purple can't possibly protect their mainbase by putting defense at the gas expansions, while the other two can.
I don't really know how to fix these issues, but at least I point them out :D