The Good News- She looks to be a sound creature with nice set to her legs on both ends. She has a feminine look about her head and neck without getting too "ropey". If she were any thinner in her neck, I would be more concerned about her depth. She has an easy doing look about her 1/3, so if she's gonna get deep enough, she'll do it on her own without any really special feed or techniques.
The Not-so-Good News - If She's not going to get deep enough, it really probably won't matter what you do...she's just not going to get there. With enough fat and enough "hydration assistance" you can get pretty much any calf to appear deep enough, but that's not the way you want to go. For real.
My verdict- With her pedigree and look, I think she'll be satisfactory in the depth department. Try not to stress about it, she seems to have a lot of other good things about her. Big bellies aren't the be all-end all of a good one. Nice first show calf!