Orange vinyl:
Heavy flesh layer first. Then a couple of thinned out blue washes, or more if needed (depending on how orange the vinyl is). Using a more purplish blush is also a good idea.
Yellow vinyl:
Heavy flesh layer first. Then a thinned out blue wash, followed by a thinned out purple wash. If that's still not enough, another thinned out blue wash. Blushing should be more purple/pink rather than orange.
Purple vinyl:
Heavy flesh layer first. Then a thinned out mint green wash, possibly two. I also like to do a thinned out rusty red wash, too. At least one yellow wash, most often two. Blushing should be more orangy.
Pink vinyl:
Heavy flesh layer first. Thinned out mint green wash, most often two. If it's more pink/purple, then a very thinned out rusty red wash. If very pink, then a purplish wash. One or two yellow washes. Blushing should be more orangy.
Grayish vinyl:
Heavy flesh layer first. Then 2-3 yellow washes. A rusty red wash is also a good idea. Depending on age of baby, orange or pink blushing.
Mixes of vinyl color:
Use the various formulas together. Go slowly and take a good look before doing another wash.