I have modified the biminis on my last two boats to go over the tower. I am a tall guy so I prefer it up there so I am not constantly ducking under it. I will say I think mine look a little cleaner than the one above. It looks like it sticks up a little too high.
No problems pulling off the tower either. On the Supra I cut a hole for the tow point to stick through but on the Tige I just slide my hand under there to attach the rope and let it pull from under the bimini.
Ah... yours look more functional since they don't have the supports behind the tow point on the tower to interfere with the rope. But cool anyway, I guess I've just never seen one like that and was taken by surprise.