Gotta say, not a fan of deckstats to look at sealed pools. Is there really no way to sort the entire pool by color? I can only figure out how to do it for the deck you have selected. I think one obvious solution is - only provide the pool, not your build of the deck. Makes it more likely to influence people, rather than getting an unbiased opinion.
Your pool looks like the stone nuts, btw. Actually quite insane. Your UB is obviously a little light on playables, but your top end is so insanely good it doesn't matter.
Your red, otoh, I think is incorrect. Of the 4 you're splashing, 2 cost double red, and 2 are fairly tempo-critical - chandra's drops off in effectiveness, and spellgorger is pretty meh if you can't reliably play it early, before you play your noncreature spells. None of these things are good splashes, and your fixing isn't worth the slots really (guild globe is fine I guess).
I'd put in your mediocre vanilla creatures to fill out your UB, and cut the red.
Alternately, you could cut the blue and go BR, but I think that deck is overall weaker - although both are very good.
If you find yourself is a very control-heavy match where value is paramount you could consider switching into 3-color, but I definitely wouldn't go into a game with that plan.