Just a couple of notes about technique. At first I thought the background was conflicting with the foreground figures. I mixed white with the transparent base and "painted in" the background with one layer. I did this a second time adding a bit of blue to the white to cool it down. Then I added the yellow to the foreground figures as well as some tones of pink to the figures to define them more. I added a bit of color to the 3 figures in front as well to make them less prominent.