Ok well I can't find a single tutorial online on how to make the art and the specifics such as sizing. I have ideas for designs in my head and I need to put them on shirts. All I want is a detailed tutorial that says "You do this, this and this to have a print ready design" I want to make shirts that art extends from shoulder to shoulder. Do I completely fill the entire white space? I mean how in the world did anyone learn how to do this if theres nothing on the internet other than how to make mock ups. Please someone help me before I lose my mind