I don't use a lot of FFQ decks, but my first thought: lose the novas and everything that isn't air, life, or light. Get six queens, six rustlers, six Empathic Bonds, whatever light spells you think might be useful, and then go with 50% air/life pillars. You're trying too hard to be a rainbow deck, and it's making it hard for you.
I do use a lot of FFQ, and I'm afraid I have to disagree. Splitting pillars doesn't work very well; you can't afford to gamble on drawing the right mix of pillars. FFQ is very vulnerable to being shut down in its early stages, so you need to get up and running ASAP so you can grow the swarm large enough to resist most conventional counters (Rain of Fire will always demolish you, though). Sticking to wind pillars only and using Mark of Life or Mark of Air + Nova is typically the way to go, in my experience.
I mostly use Mark of Air + Novas myself; it lets you laugh off earthquake denial tactics (and devourers, to a lesser extent) and lets you get your critical first queen out quickly, plus you can splash in a couple inexpensive off-color cards (deflagration is probably the most important one). I'm not sure I see Entropy + Supernova as being a step up, though. I commonly use 8x or 9x pillars, and even with an air mark this is barely enough--sure, Supernova gets you a little bit of extra air quanta, but unless you draw more than 1 Supernova/turn you're going to be behind in air quanta. Being able to get out deflags after only 1 Supernova is a nice perk, but if you upgraded the deflagrations and stuck with regular nova you'd still be able to do the same thing...
As far as tweaking the deck goes, dropping down to 5x queens is acceptable; I find that in PvP at least it hurts less to take out a queen than it does a rustler. I'd definitely ditch one of the weapons. I prefer Owl's Eye in my FFQ deck but that's mostly because of all the excess air quanta I get, so Druid's Staff might be a better choice for a non-Mark of Air deck. You could probably lose one of the deflags or the steal, too; they're important, but the more of them you have the greater the risk you'll find your hand clogged with excess ones you don't need.