Collage artist from Australia that spent time in the UK and Canada, before returning to Australia for retirement and to work on art works that included collages with techniques that he called ‘interweaving’ – the combination of textile, paper and other mixed media in full colour imagery.
http://www.robertmitchellartist.com.au/12.html Link Viewed 14 December 2017. Contains imagery and information about this artist.
Suns and Moons
Thinking of the above as a simple colour collage. Fairly clear delineation of primary vivid colour. Probably actually also simplified by black background
Dreams in Space No 2, 1982-5,
And this is perhaps a more complex colour combination. At this small size on the computer there is blending of colour to make a more brown appearance, but this is actually quite a large scale work I understand, and there are bright colours and unusual juxtapositions within it.
Here are a couple from the Art Gallery of NSW
https://www.artgallery.nsw.gov.au/collection/works/10.1988/?tab=shop Viewed 14 Dec 2017
Better quality images than above but similar comments apply. No death date is given above but it seems he died in 2002.