The original source is the one we say is the original source, its a picture originally published in an old anatomy book, from which all other sources come.

"General outlines, I'm the worst with proportions but it came out okay."

When you say that you are implying it was freehand and not traced, if not how could proportions could come out wrong if you are tracing it????????????????

Thats why in making that comment you are inducing curators to believe its drawed free hand, because the only way the proportions could come out wrong is if its freehand, for a traced work always respects the proportions by definition.

Also when you say that:

"My favorite part in ever drawing is shading, so I had fun and was actually surprised at how it turned out."

You are deceiving curators too, because the shading is copied from the source too, so what are you surprised of if the shading turned out just the same as the place from where you copied it????

Saying you are surprised about how it turned out implies its not copied.

"I didn't even draw it for Steem, it was meant to be a gift for someone"

Right, and you took the process pics to show the recipient of the gift??????????? Please.....

have a wonderful day!!