It's about visual contentment, appealingness for its own sake.    From Wordnik.com.  [Archive 2005-11-01] Reference

Yet at the same time, mixed in therewith, a curious strain of womanish, nay childish, weakness, appealingness.    From Wordnik.com.  [Marcella] Reference

It was opened by Christine, who had, perhaps, bathed her face, for the traces of tears were almost gone, though enough remained to give her eyes an appealingness that went to his very heart.    From Wordnik.com.  [A Beautiful Alien] Reference

It was not vanity -- it was ready sympathy that had made him alive to a certain appealingness in her behavior toward him; and the difficulty with which she had seemed to raise her eyes to bow to him, in the first instance, was to be interpreted now by that unmistakable look of involuntary confidence which she had afterward turned on him under the consciousness of his approach.    From Wordnik.com.  [Daniel Deronda] Reference