I see this heifer as having plenty of depth, but too short in her body, which puts her out of balance. She is a tad trashing in her neck and a little coarse. I agree she looks like she could make a good Steer Momma. I also think with enough hair, a real good clipper/fitter could get her in the purple at some smaller shows.
We had a FR Magic heifer just like her, except a tick longer, and got her as far as Res Nat'l Champ Bred & Owned Maine-Anjou.