The tool being used is called a stamp or a roller
Go back and review old notes from earlier in the year, maybe have a friend help you remember key words from previous classes, but most importantly, don't freak yourself out buy the idea of a "scary test" and just breathe. Hope this helps! :)
Answer: water, leaves, grass, butterfly wings, spider webs, petals, etc
Explanation:
I think it would look good with a light blue or royal blue.