Great job with your maiden and congratulations. I do advise that be careful when coming in with brakes on. What happens is the instant the mains touch the ground it will try to stop your jet as soon as possible which forces your nose gear to touch down sooner. If you came in fast enough it will slam the nose gear down and cause you to bounce back up in the air. Allow all three gears to touch down then brakes.
Well, nothing damaged thank god, but this shows you that putting too much stuff in from different manufactures, although in theory it should work, it mostly causes issues. I Do not understand why you do not use all powerbox, so everything works without any issues...... Putting a throttle signal through a 3rd party device is risky in my view..... But hey, you saved it! Well done! Not even a ground loop.... Thumbs up!