Agree and disagree with some of these trends. The bright colors trend seems obvious, but not when you factor in mobile first. Mobile doesn't handle gradients well thus the great flattening of images into more traditional "web safe" colors. Mobile requires simplification across the board images included. 

That is NOT to say arresting images don't matter. Arresting images matter more than every since your content must cut through a mountain of clutter. If you're using standard stock cut luck with that "cutting through the clutter" thing. 

Better to find arresting images like the one that got my attention long enough to read and scoop this post :). Marty 

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