Hi Andrei

I think you might consider making the front winglet a different way. Probably as a separate piece to the fuselage with a lofted blend.

The front and rear of the winglet has lost its airfoil shape when lofted with the fuselage which makes it look quite blocky.

I hope my observation helps you when you present the model to the client.

Thanks for the response regarding number of points. I assume you just use the add point command or select a point and hit the delete key till they are all equal.