To the Paint shop GOD!!! (aka Cheshire cat)

[Budweiserbob!]

Hey! Cheshire, i have heard alot about you and how your amazing on paint shop (i've also seen alot, if not, all your work and it is brill!). So i was wondering! Do you have any tips or tricks you could share with an amateur like me! Just general tips like
Shading
Colour contrast
ect

thanks!

Budweiserbob!