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So why did you say it's your drawing when it's clearly not yours?

I mean it's a picture of my real sister, but it's in my file.
Sorry if I'm wrong in the phrase.
My sister and I share life, because since our parents died, we lived together to face life's obstacles.

Yes, sorry if the drawing isn't completely finished, and I'm still learning to draw

No, you literally told me it's your drawing and you're still learning to draw

I'm sorry, indeed I am still learning to draw
and that is a picture of my younger sister.

I apologize so much