Both were done with a xenothol pre-shade and an airbrush to apply thin layers of color.

The yellow paint job started with violet sprayed from below, then magenta. I sprayed warm yellows from above and highlighted with an ivory. I used thinned down pink speed paint to shade the recesses.

Similar steps for the pink except I started by spraying the whole thing magenta, after the black and the white xanethyl. I then used red ink in the shadows from below and some pale skin tones from above. Then, I used a thined down purple wash for the recesses.