Okay, if you want to change the color textures, you need to either:
 

1. Use the material room.  I'm still learning about that, but Acadia has a wonderful sticky at the top of the forum.

2. Go into your poser directory and look for the texture images.  Make a copy of them elsewhere, then change the colors on the copy to suit your desires and rename it.  All you have to do then is put the texture images back into your poser runtime.

About making a face that looks like you, there are a few options that I can think of.

1.  There could be an option with the faceroom, however you'd need someone who uses it a lot for advice.  Perhaps you just need to keep making a lot of little tweaks here and there.
2.  You can download a free 3D modeler, like wings 3d or buy a cheap one like hexagon.  You would then have to model your face in the 3D utility (be sure not to add or subtract any points, lines, or faces) and then import the changed model to use as a face morph.
3.  Save up and buy Daz's victoria 4.2 and the ++ morphs.  A little expensive, but that is a popular figure and if you check around the various sites, she has a growing selection of clothing and character morphs, both free and for sale.

WARK!

Thus Spoketh Winterclaw: a blog about a Winterclaw who speaks from time to time.

 

(using Poser Pro 2014 SR3, on 64 bit Win 7, poser units are inches.)