Nanachi from Made in Abyss, apparently. I don't know the anime myself, but I made this for their birthday since it was their favorite character...
... And now I'm stuck with my preordered Nanachi figurines I can't cancel X.X; My second regret is that in the whole period of October-February, these last 3 drawings I've posted just now were the ONLY things I've drawn in that time frame >.<;