Correct

独树一帜

/ dú shù yī zhì /
Strokes

Definition

lit. to fly one's banner on a solitary tree (idiom); fig. to act as a loner/to stand out/to develop one's own school/to have attitude of one's own

Example

Definition

hoist one's own unique banner―develop a school of one's own; develop one's own unique style; be highly original; blaze one's new trail