greybeard
Herd Master
I'm not really 100% sure, but with the tension wire all the way at the bottom of the brace, it's going to make the brace where it attaches to the corner post push up on the post (help push it up out of the ground). If you lean a ladder against a wall and then push the bottom toward the wall, the bottom of the ladder will move in while the top moves higher. I "think/believe/am pretty sure" the tensioner wire should actually be about 1/3 to 1/2 way up the brace so it's pulling the top of the brace down (supporting the corner post) and also pulling the bottom of the brace in and down (onto the brick support) so it can't move away.
But yeah, looks good, easy, fast, inexpensive, etc.
If done /\ that way, the tensioner will either break the diagonal brace post or cause it to severely bow down in the middle in very short order, as well as pulling the fastener out of the top of the diagonal post.
Soarwitheagles has done it 100% correctly.