I would call that a CS12... and maybe a little too dark for my tastes but the beauty of home roasting is that you can get it to where you like it best.
I would suggest roasting the same weight of beans and pulling the next roast a little earlier, take more notes and see if you like it better. The 5 minute cool down might be "over running" the roast a little too, so allow for that when you pull the roast.
That Brazil is one that "should" roast a little lighter given the same amount of heat but after a couple of tried you will find your own sweet spot.
Most of all... enjoy the journey!