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>1) By using pressure, add your dark tone to make a tonal effect (Use this process for the next colors)
>2) In the faded part of your dark tone, add your middle tone, i added a light green to my middle tone.
>3) Keep mixing your middle and dark tones lightly to give that blended effect
>4) add your lightest tone. I used yellow because it's an analogous color towards green.
Remember, your key is a pressure and layering
>Pressure for the tonal effect
>LIGHT layering for mixing
If my phone camera wasn't so shit i would have given you a real life example on how i would use my color pencils.