Do's!
-Use lock alpha.
-Color character designs.
-Sell characters for profit. (Real and fake currency.)
-Make adopts.
-Make minor edits
-Post on other websites.
-Ask me questions about how to/what can you do with the lines.
-Credit me <3
Don'ts!
-Claim the lines and the concept as your own.
-Re-make the same editable.
-Trace over the lines.
-Make huge edits.
Original picture: