So Aspek, I gave your style a try and it was pretty hard for me too add extensions, seemed like the easiest way to go about it was loosening up on the letters, and exaggerating a lot more on them. My Sketch was kind of a fail but I think it almost gets some points across. One of the easiest ways to make extensions look like they should be there and are in the proper place is symmetry throughout the whole piece.
Yea that style is just so opposite for me, I might give it another try.