Color pencils

I've been using color pencils for the last month after uhmm ... more than a decade, and I must admit I'm astounded by the results, especially on toned paper.
I'm having some problems with the shadows when working on regular white paper but I' like it. I'm using Faber Castell Polychromos, the same I used back in college. I hated them because I'll always ended with a dirty piece of paper and because nobody told me how to use them and obviously you have to be really careful not to push too hard( at least if you are a newcomer like me) and that's something I failed miserably  with my first tin box of pencils.

COFFEE? ANYONE?

BIFF THE DOG