The Collaborative International Dictionary of English v.0.48:

Artistry \Art"ist*ry\, n.
   1. Works of art collectively.
      [1913 Webster]

   2. Artistic effect or quality. --Southey.
      [1913 Webster]

   3. Artistic pursuits; artistic ability. --The Academy.
      [1913 Webster]

WordNet (r) 3.0 (2006):

artistry
    n 1: a superior skill that you can learn by study and practice
         and observation; "the art of conversation"; "it's quite an
         art" [syn: art, artistry, prowess]

Moby Thesaurus II by Grady Ward, 1.0:

102 Moby Thesaurus words for "artistry":
   ability, address, adeptness, adroitness, airmanship, art,
   artfulness, artisanship, artistic skill, arty-craftiness,
   authorcraft, authorship, automatic writing, bravura, brilliance,
   cacoethes scribendi, capability, capacity, cleverness, command,
   competence, composition, control, coordination, craft,
   craftsmanship, creative writing, cunning, deftness, dexterity,
   dexterousness, dextrousness, diplomacy, drama-writing,
   editorial-writing, efficiency, essay-writing, expertise,
   expository writing, facility, facility in writing, feature-writing,
   finesse, flair, grace, graphomania, graphorrhea, graphospasm, grip,
   handiness, horsemanship, inditement, ingeniousness, ingenuity,
   journalism, know-how, libretto-writing, literary artistry,
   literary composition, literary power, literary production,
   literary talent, marksmanship, mastership, mastery, novel-writing,
   pen, pencraft, playwriting, practical ability, proficiency,
   prowess, quickness, readiness, ready pen, resource,
   resourcefulness, rewriting, savoir-faire, savvy, seamanship,
   short-story writing, skill, skill with words, skillfulness, style,
   tact, tactfulness, talent, technical brilliance, technical mastery,
   technical skill, technical writing, technique, timing,
   verse-writing, virtu, virtuosity, wit, wizardry, workmanship,
   writing