Ron, The only thing I can see that is negative, would to keep a close eye on the lobes. Make sure when you draw them out that they are even. I usually draw a line around the horn at a 90 degrees and then using some heavy paper, cut a circle out and measure up from the line so you can lay your circle on the horn and get them both the same height. If you take a look, the one is a good bit higher than the other one.
Besides that, its a right fine looking horn. Your work is coming along just fine. I have been watching your artistry I prove on the horners bench. Keep up the good work Ron.