Updated visual price sheet for 2016

I didn't plan to but with help from my Mum, she pointed out that I was charging less for a simple ref sheet than I was for a flat colour. So prices hav been adjusted to make it more balanced. Other prices remain mainly unchanged other than upping my price for extra characters. The extra price will apply to linearts, flat colours, and the full package. .

Things to note:
2 open slots for simple and complex ref sheets.
1 open slot for detailed ref sheet as well as the the full package.