It won't be a reproduction of a childhood picture as I originally intended it to be, because we were kids when 12' megapixel cameras didn't exist and the resolution was awful. Blurry pictures are very challenging to work with and nothing I recommend!
Colors used for the suit:
The dark parts are a mix between blue and burnt umber (no black needed). The prussian blue could have been left out, but I like how it looks when you mix it with white. It becomes more alive and more like turquoise compared to the mix between white and ultramarine which looks like a more pale light blue.