I think the second one looks good, in the fact that it has more detail and shows more of the character. But the first one also looks good, in the fact that her expression looks nicer. The second one also has more shadows and lighting, which always makes drawings look better, but I think that's just because that one has a background. All in all honestly, they both look good.
Personally I like the one on the left a bit more. Something about the shading looks better to me, but I cant put my finger on why. The hair is really busy in the second one and I like the softer style of the left...but just my preference.
My OC's: My Work || My OC: highlighed commissioned works (Because I need improvement)