Image 1 & 2 connection: Messy but clear
Image 2 & 3 connection: Flower blossom as main idea
Image 3 & 4 connection: Both has hand for main object
Image 4 & 5 connection: Have evenness overlay object
Image 5 & 6 connection: Consistency concept color
Image 6 & 7 connection: Infinity feeling
Image 7 & 8 connection: Times traveling
Image 8 & 9 connection: Peaceful and Emptiness