ΔE 48.9, loose: different enough that you should pick on purpose. Nude Skin is noticeably lighter, much more muted, warmer than Volupus Pink.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 49). Nude Skin is noticeably lighter, much more muted, warmer than Volupus Pink.
The same difference applies the other way round: Volupus Pink is noticeably darker, much more saturated, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Volupus Pink on the colour wheel See Nude Skin on the colour wheel
All matches: Volupus Pink equivalents · Nude Skin equivalents