Really? Could you be more precise, and if it is a bad thing or not?
I think it's because of the shading on the neck. The fact that the shading looks like horizontal rings gives me the impression that she has a double chin. I think the part from the middle to the right could do with some more finer shading. But you said that she's not finished, anyway!
I really love her face! She looks so friendly and nice, but I can very well imagine that she's also mischievous.
She looks a bit cross-eyed, though, I think it's her left eye which is a little off. Personally, I would also change her haircolour to a deeper pink, but that's just my preference. The shading of her hair is really good already!
Zooming in sounds good to me. Otherwise you might not see any details in the 38x60 resolution.