1. I used boost, define and sharpen, and fresh and colorful on my purple one, fresh and colorful, boost, and define and sharpen for my black one, and boost, define and sharpen, and pink fade on my pink one. I used these actions because I wanted to make the colors bright.
2. I made it my own by taking them in different angles.
3. I would try to make them more clear and sharp.
4. I like, in the black one, how the puddle on the bottom looks.