Um... by "light" I mean the sum total of all adjustments you make to bring out the specific look you are after; including lights, HDRI maps, skydome, render settings, et al. As a theatrical lighting designer, the problem I see with an outfit like the one you are using, is that it draws attention away from the face. It is tough to find ways that bring out the face but don't make the bright yellow even more distracting. Among the theatrical techniques I use are; lavender tints on lights (which mute colors), spots directly on to the face, use of hair light and side light to help isolate the figure from the background and frame the face. In the 3d world, you also have some other possibilities; including even creating a special "punch" light that is set to only "see" the character and ignore the rest of the scene. Simpler options are to make the skin tones lighter or add some glow to them to help them stand out, and muting the colors and blurring the reflections on the outfit.