The best way I have found when beginning a project is to pick a main focus fabric, then pull fabrics that work with the colors, usually using the little dots on the selvedge is a good way to pick colors, so you know they will work. Try to use a light, medium and dark; most people have more medium fabrics and few very dark fabrics. I think you're off to a good start with these. I might pull in the white/beige color in the print on the left as a background, as that is fairly neutral. I hope this has helped you.