Bianca and Oana

Soooo this is by far my best portrait, I worked my ass off and it was worth it. The girls are sisters, Bianca is the one with blue hair ( only in the picture) and the other one is Oana. I made this a a gift for Bianca because we're friends and all. wanted to upload this along with my other finished drawing, but i haven't managed to scan that YET, hopefully tomorrow, it's not another portrait, it's still life.
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I noticed this does not have the same dimensions as the original, on paper.