12 colored Pencils issue Hi y'all. I'm having an issue with learning how to use colored pencils. I bought Faber Castell's Polychromos line and I bought the 12 pack.

Now, I'm very excited to learn how to use them and blending and stuff. My problem is, I'm having a difficult time finding tutorials or lessons that use just the 12 colors. Everyone seems to be using bigger packs and I got the 12 pack because I wanted to learn how to mix with a limited pallet for portraits and stuff and it seems 12 colors were only being used as a challenge. 

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Anyway, my question is, is there any tutorial or lesson on using color pencils and blending with less color pencils?