Tiger Lily is my first Byul, and I have to say she is one of the cutest dolls ever! She looks super sweet and innocent, though maybe a little bit like she's hiding some devious plan. Her eyes unlike Pullip can't be closed or blink, but they do move from side to side. She is significantly smaller than Pullip or Taeyang.
Tiger Lily is a rather cheap Byul, sometimes available for under $50. If you're looking for a cheap Byul she'd be a great one to consider. Regardless of rather your a fan of Peter Pan or not, as you can see she can easily be re-outfitted to fit with any doll family.
Her dark skin makes her very unique, and makes me kind of scared to pose her- if her body breaks I'm going to have an extremely hard time finding a replacement body. I'm very careful with my dolls and toys, especially expensive stuff- but plastic/vinyl can get old and worn quite quickly. Fingers crossed that all of my dolls stay in perfect shape forever, since I refuse to keep them in their packages! :D