How to colour an ink bottle (medium)

Adults 

Teenagers 

60 min

What you need:

Polychromos artists' colour pencils or Albrecht Duerer artists' watercolour pencils or India ink Pitt Artist Pens

Colours you need for step 1

Step 1
Colours you need for step 2
Step 2
(If you do not have the appropriate colour on hand, you can also use a similar colour or one that you like.)