There is always a difference between how things actually look like and how we remember them. This creates an unique vision, for what westill have traditional art, not replaced by photography, the vision which allows to create the image better than it's real-life prototype.
Your image made pyramidion look lighter and actually flying. Also, larger baloons make it look more trustful - it is had to believe that actual Pyra with its small baloon manages to float in the air.
I'd love to see more your pictures of airships.