Self Portrait Assignment

My Self Portrait project. 

This is my final project. Its in the process. the main idea of my project was to put all my likes and interests into a imagination bubble. 

I'm done the most important part, now I'm in the process of making the drawing of me, look like me. besides that, I'm stuck on what to do. 

I don't know what to make the background of the imagination bubble or the background behind the imagination bubble and me, I'm not sure if i should paint, use pencil crayon, or anything because the texture of the canvas would make it very hard for me. 

I need some feedback from someone!!! :) Feel free to shoot any ideas at me !