Your buck shows promise, he needs to be posed better though, he doesnt have his feet correctly in position but looks like he would do well,
The Doe is very nice. color is a tad darker than I would like but if you blow into her fur there should be a nice ring of red ( rufus) colorinig.
They are both very nice animals and worth putting on the show table. Heck second or third place is no easy feat for a first time showing, but I believe you have a good shot.
If you do go to the show please be sure to post your accomplishments.
Do you know if either or both have been shown before?
If not you can always breed the doe after a few shows, general rule of thumb is to breed them before 8 months old, but a few weeks after isnt going to harm anything.
good luck and keep us posted.