She looks good but, IMO, still like a heifer calf. I never breed at a year and seldom at 18 months unless they are well grown and I need calves on the ground at that particular calving season.
I don't think my conditions are anywhere near as good as yours and I seldom feed anything other than a phosphate lick to non-lactating lows unless there is a drought.
For me, her calf would be too expensive to raise and the chances of her rebreeding while lactating at her age, in my conditions, would be too low to justify the expense. That is why I look for easy fleshing, moderate framed cattle.
I hope you have a great result. <beer>