Well, I'm by no means an expert, but I have been playing around with that tartan maker, so I will offer a humble suggestion.
The black and scarlet pattern is very nice, and I would not change it. The gold, purple, blue and white, however, draw the eye very strongly. Since they are the former colours, I would suggest giving them less prominence, perhaps a single stripe of each. If it were me, I would have the gold centered, bordered by the white, the purple, and then the blue. If the school colours are meant to be in a different order, mind you, I'd follow that.
Again, I am not a professional by any stretch of the imagination, so take my suggestion as you will!