Below is a walkthrough for the In My Image side quest in Tiny Tina’s Wonderlands. To obtain this quest, speak with Belvedance in Overworld near Brighthoof after starting the Thy Bard, with a Vengeance main quest.
Carve likeness in 3 rocks
The first rock can be found next to her.
The second rock can be found on a ledge overlooking the Shrine of Mooh Al.
To reach the third rock, you’ll have to finish the Working Blueprint side quest in order for the rainbow bridge to be crafted. Head across the bridge and enter the snow portion of the map to find the third rock across a bridge.
Talk to Belvedance
Return to Belvedance and speak with her to complete the quest.