The narrator describes Crane as lanky and sharp-featured:
He was tall, but exceedingly lank, with narrow shoulders, long arms and legs, hands that dangled a mile out of his sleeves, feet that might have served for shovels, and his whole frame most loosely hung together. His head was small, and flat at top, with huge ears, large green glassy eyes, and a long snipe nose, so that it looked like a weather-cock perched upon his spindle neck to tell which way the wind blew. To see him striding along the profile of a hill on a windy day, with his clothes bagging and fluttering about him, one might have mistaken him for the genius of famine descending upon the earth, or some scarecrow eloped from a cornfield.
The narrator also indicates that Crane is educated and more sophisticated than the residents of Sleepy Hollow:
The schoolmaster is generally a man of some importance in the female circle of a rural neighborhood; being considered a kind of idle, gentlemanlike personage, of vastly superior taste and accomplishments to the rough country swains and, indeed, inferior in learning only to the parson.
Arguably, Crane is not particularly sophisticated, so sophisticated could be the answer. The best answer, however, may be that all four adjectives accurately describe Crane (trick question!).
