I personally liked the base skintone you had in the first one better. If you want to keep this color, then the shadows should be darker and the highlights lighter. Also, the shading of the hair is kind of gradiated, and the shading on the shirt is a little confusing I have to admit.
The shading is much better overall, but I recommend studying human facial anatomy and lighting to make it look more natural. There should be some links in the General section of the forum.
The style you chose takes me back to the days of RPG Maker--did you use their face pics as references? The proportions, perspective, and even the shading reminds me of them.
