Do decals make a difference?

A rhetorical question.  I've just starting putting some on my 6mm tanks to see if they are the perfect finishing touch.

Judge for yourselves.





The decals are supposed to be 6mm but I suspect they are more in the 1/285 or even 10mm side.  Too big to go on the turret (they are Heroics tanks though which are always on the smaller side).

Even so, they add a certain je ne sais quoi.  N'est pas?