The third [and last] part of this mini-series is in the Editing Basket. It focuses on the mouth however all the 3 make for enough information to complete a set, at least at a beginner level. Obviously the more work and better resources one might use would make for better end products, however for learning it's important to keep it fun and successful within attainable goals. The 3rd part does cover some information on using merchant resources.

One important factor in making skin textures these days for redistributing, is to include "no brows" as well as "with brows" as many do use fiber mesh for hair. Either a clone or smudge brush can help with that if using "merchant resources" that do not otherwise provide one.

And I will say this, my most favourite skin texture merchant resource IS sold here at Renderosity BUT it's useless as such 'cause we can't share it ['cause all I make is free] :-( Makes a beautiful ST fanart character known as a "Deltan".