She has even made her own innovations. Whereas most traditional paper cuttings are flat, hers have a three dimensional effect. Sun explained her secret. "You don't want to mount a work entirely flat, some areas should be concave and others convex.
但孫步霏強調她的作品絕對保存了傳統剪紙中「剪」和「連」的特性：「現在有許多人在製作剪紙時，與刻刀並用；但我完全承襲傳統，一律用剪刀完成。