SPREAD LAYOUT - Adding color can be tricky! Color can be included in your type packages, mod design, or even the theme elements. Try changing it up and experiment with trending colors.Just make sure it does not distract from the pictures.
Besides the fact that this poster is in another language, I like the idea of stacking the type into a rectangular area. The angled text zigzags you from top to bottom. I also like the small illustrative details among the text.