The original pictures look the way I like a heifer/cow to look - long. Sorry to hear you lost the Revolution heifer in calving. That really hurts after all that time to get her there.
I bought a nice looking, long low Tundra daughter at a show a couple years ago. Lost her in calving also. Lost the calf too. Same bull as the rest of my herd that had no problem.
At that point I came to the conclusion that no matter how good they look, the cow or heifer's #1 job is to have a calf. The vet tried everything. She was paralyzed and never got up. I had to shoot her. That really hurt.
Nothing like shooting what was a good looking heifer not to mention expensive.
Seeing that expensive heifer die from calving taught me a lesson. I will not buy any more heifers. Pairs or three in ones maybe but not heifers. And actually since that unhappy experience I don't buy any females, my herd will be raised only from cows I have raised and that know how to have a calf.
I hope the first 2 pictured above in your OP faired better.
Jim