An improvement

   The first time he checked the white flame, there were only a few thin blue and gold lines around it, and they weren't even noticeable until he focused properly on the energy. 

   However, now those thin blue and gold lines from before had developed into streaks that coiled around the white flame, swirling and moving along with it.

   Though he found this quite surprising, Harry didn't think much about it, and simply felt like it was due to him increasing his energy control.

   He focused on the white flame, and the swirled it around, before moving a small part of it to his right arm.

   A few streaks of blue and gold also flowed along the white flame, into his arm. 

   The moment the energy moved to his right arm, he immediately felt a warm refreshing sensation around that arm, and couldn't help but wish that the energy remained there forever.