What media to use?

• Collage using the enlarged, greyscale photocopies of my reference images - the blue, from a page of an old prospectus.
• Ink and bleach

I really like the look of the greyscale collage with the single blue circle as I feel that this links it in with the article as the colour pale blue is repeated throughout the piece of text that I got. I also like the glowy effect of the ink and bleach and I think this technique works well to represent the universe.

I decided to combine the two techniques together to see how this would affect the aesthetic of my work. The brief says to only use 2 colours, not sure if this is considered to be more than two colours though - I could scan this in and make everything, except the blue, greyscale on photoshop