Embellished Cut-out Shoulder Tutorial, idea for neckline too
cardigan or Blouse Refashioning with lace (Idee ohne Anleitung). Tis would look lovely in tone on tone with only texture providing the variation.
Add sheer tie and ruffle to purchased sweater. Also about of trim at end of sleeves and binding the neckline. The ruffle idea is a good one for sweaters that are too short.