ΔE 21.0, loose: different enough that you should pick on purpose. Natural Flesh is a little lighter, much more muted, cooler than Shiny Skintone.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Natural Flesh is a little lighter, much more muted, cooler than Shiny Skintone.
The same difference applies the other way round: Shiny Skintone is a little darker, much more saturated, warmer.
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 Shiny Skintone on the colour wheel See Natural Flesh on the colour wheel
All matches: Shiny Skintone equivalents · Natural Flesh equivalents