Just an update.  Fixed the chin issue.  Hair and background are major wip, though

I'm loving the skin and the head's form -- it really came together! 

Did different people contribute to this? I know you said you're currently the sole graphics artist, but were there previous contributors?

I ask this because what I see are not a bunch of nit-pick mistakes, but an overall failure to define and keep a consistent style. Your best bet are these two steps:

1) Go back and lay out a style both in both technical and conceptual terms. Are there palette restrictions? If so, what's the color count? How much contrast? What type of outlines, if any? Amount of detail? What mix of cartoon and realism elements are you wanting? Viewing angle (45, I'm guessing)? Do you want any distortion (in terms of perspective) on objects? Also establish a scale that objects should abide by (i.e. "this is the height/size of a standard person, and based on this, this should be the height/size of an evergreen tree next to that person"). I understand that scale is skewed in 3/4 perspective rpg's such as this, but there are instances where objects look unaffected by any sort of scale, such as the two tree types in your first pic.

2) Rework or redo pieces based on these new guidelines, and make sure to give would-be contributors these guidelines before they start work. I know this is a monumental step, but, if done over time in conjunction with the addition of new tiles/sprites, is not too big a deal.


The graphics themselves are good quality -- they just don't match up. 

I feel that the paper's edges are too bright; maybe aim for an in-between color of those two tans through dithering, with it leaning a little more towards the darker shade. Also seriously consider dithering the picture into the paper along the edges, like a sketched-out sort of effect.

For such a small landscape, AA-ing is your best friend.   I understand that this is a WIP and that you might still be laying things out, but please don't skip this step! It would do wonders on that road.

Edited the hair, and added some more details to the face, mainly the ear.
...thinking about calling this done soon?

I suggest tweaking the area around the mouth -- you've defined the muscles around the upper lip (and the lips themselves) too much, leading to a forced kind of expression from the mouth. Maybe drop that line on the right corner of the mouth (our right) seeing as it only gives her the 'chubby cheeks' look, and work on that small area of lights on the left side of the mouth. The bottom lip's value and hue is very close to the skin tone surrounding it, leading to them blending into one another. Maybe either put a lighter skin tone around the lips or work on the lips' color.
For a more natural smile, cover up the bottom layer of teeth with lip.

Other than that, this piece looks promising.