Gnome Skin vs Wildling Flesh

How close are they?

ΔE 9.7, close: similar, with a visible difference side by side. Wildling Flesh is a little darker, more saturated than Gnome Skin.

Can I use Wildling Flesh instead of Gnome Skin?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Wildling Flesh is a little darker, more saturated than Gnome Skin.

Can I use Gnome Skin instead of Wildling Flesh?

The same difference applies the other way round: Gnome Skin is a little lighter, more muted.

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.