i think it's extremely cute ! the only thing is that i think the drops should vary more in size and shape to make them more interesting [ex.], but other than that it's very creative ♡
the improvement man!! its really cute! i like her expression ;w; & i agree on the drops
hair shading, uuuh, i generally just stroke over it a bunch of times haha but yeah theres a bunch of nice tutorials
a general simple tip is adding a darker shade on the bottom like:
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