I think that roll bar looks great for the time you had and it looks safe enough to me and I think it will pass tech for sure.

But I am going to say something just so others will have the info.

Rule book says the main hoop has to be attached to the "rocker sill". MOST tech's won't ding you on this. But, you want to keep the main hoop from pushing those 6X6 plates through the floorpan.

If you really wanted to make it safer you can add the 2 bars that would go to the top of your frame ties like was mentioned. I personally think it looks fine and will pass tech.