1). Personally I am not sure how well I executed my piece, I wasn't sure of my process. I kind of went all over the place, trying to do what made sense to me.
2). It was literally just a mess in my room that I thought seemed fun and challenging and described me pretty well. A lot of candy, headphones, and some letters to friends. I don't believe it was an exceptional composition, but it was an interesting one.
3). My colors were mainly warms, dealing from white to yellow to orange and red. I had fun experimenting with the shades in between.
4). I added shadows beneath the wrappers to offset the highlights and give it depth. I think thats what you asking? If you're talking about composition wise, I believe the plastic and the headphones were pretty contrasting.
5). I used lots of highlights, since my photo was extremely bright. The photo happened to be right next to a bed side lamp. I have a fun technique with the gel pen to get the highlights I want, so that was cool. And then I used shadows to add depth beneath the wrappers and envelopes.
6). Simple. I love using brown paper with colored pencil. I love it as a base and things it brings out the colors well.
7.) Prisma is not all about technique as it is patience. The heaps of layers you have to add on day after day, knowing how to blend and how to add slight shading. It's important to know when white can't get any whiter. Remembering how to use color pencils inspired me to do some other pieces.
8).I could honestly improve it by finishing it. I had extreme difficulty in the middle because I didn't/don't know where to go. It's just a mesh of darks and whites, and I don't know how to go about that. Perhaps I could figure it out.