Its hard to tell from a pic, but I would say she looks plenty tall enough for me. She looks like she has plenty of product and shape in her. Yeah so her neck isnt good enough, but remember she is a market heifer. Unless you get one of those judges that is gonna harp on what her contemporaries in the pasture look like then I think the rest of her will make up for the neck.
On a side note, not to start controversy, but for everyone that knocks steers because of what their contemporary heifers might look like. This heifer is what I hope they look like if they were produced by a terminal cross, because if they were produced by a terminal cross in the commercial side of the industry then they should end up at the feedlot just like their steermates. So I say this heifer is the picture of what a market heifer should be.