..Forever...In...My Veins.

After finishing "The Darkest Hour" and of course, having a love for the song "Devil In My Veins" by Yelawolf, I could see it being a representation of Brambleclaw given all that he goes through as a kit into apprentice hood under the mentorship of Fireheart (turn Firestar later) while being looked down on due to who his father is. The idea of using the tune for this piece is because in a way, Tigerstar could be seen as a devil flowing through Brambleclaw through genetics of being a child of him.

The reason for the 2 Clan symbols is to represent the kind of inner demon he had as a youngster to be loyal to Thunderclan or go to Shadowclan to be with his father, which we all know later on his sister, Tawnypelt is the one to leave for Shadowclan leaving Brambleclaw to be loyal to Thunderclan.

References for the character art is from the drawings by purespiritflower on DeviantART all credit for the reference of using her fan art reference sheet of Tigerstar and Brambleclaw are from her.
If she finds this piece and doesn't wish her work to have been referenced for this, I'll remove this piece.

Tigerstar and Brambleclaw (c) Erin Hunter