Ya, pest/fractal is better. This deck is a little more fun in some aspects in my opinion, which is why I like it. Besides, pretty much nothing can compete with pest/fractal (using photons for cremation in this deck would work though).
And this version is faster than ones using fire towers. It gets started later, but you get out a lot more phoenixes than they do. That's what I've experienced anyway... I haven't lost to a tower version yet with this deck, but it could happen if I get a bad draw. You actually don't get many bad draws with this deck though.
Finally, I don't think the picture needs to be changed. That's the basic version. People can tweak it how they see fit.