Example of expressions chart commission featuring Floofybutt's Gaius. It was also a part of the reference of this character http://rayetherna.deviantart.com/art/Reference-commission-Gaius-593568468?q=gallery%3ARayEtherna%2F25292415&qo=14

Commission description:

A set of minimum 6 expressions, done in the same style as shown on the example.
You can choose what expressions you’d like to see on your character’s face or you may leave it up to me!

OR you can provide any expressions meme over the internet, including 50 expressions challenge (which is done for the maximum price of $400, since I shall do it - with pleasure! - but die afterwards xD)

More examples but in sketch form: http://rayetherna.deviantart.com/art/All-Your-Base-Are-Belong-To-285542104