Think of top notes (citrus, mint, light woods, lavender, herbs etc) middle notes (florals, woods, herbs, spices) and base notes (woods, spices and balsams) and make sure you have a variety of each.
The obvious things missing from your list are the common florals (rose, jasmine, neroli, geranium).
You need some rose urgently! I couldn't live without lots of lemon oil.
The best way to get started, in my opinion, is to try and make some classic types of fragrance. Make a chypre (bergamot, oakmoss, labdanum, pathchouli for the skeleton chypre, then fill out the heart with florals, or make an oriental (anything over a base of vanilla, sandalwood etc) or make a woody (citrus top over woods) or make a vetiver etc.
I have built my pallette around what I have wished to work with on a particular frag - recently been exploring tobacco.