Example of using MyPaint to figure out what you want to draw:
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And using Krita's more powerful suite to work on details:
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A quadrupedal form does create problems sometimes, such as reaching stuff on shelves. Although if Artee really needed to, she could just stand upright, using the tail as support - she'd actually have a fair height advantage on a typical human (visible as a very unfortunately placed outline in the first sketch) in that case.