Honestly, I think it's a little wordy on the why use page I’d take the numbers out & edit the text down make it a couple points bigger. I found it very effective to combine a spotting / care guide in a promo brochure it's less likely to get thrown away if a potential client sees information of value for the future. I really like your logo have you though about incorporating some elements specifically the bubbles half-toned and larger in the background on all the pages you’re paying for color use
What Adam said where the picture of your
vortex!
not trying to insult...every ones got an opinion