Nebuly lines

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To identify different types of nebuly lines is, probably, an important task in the context of heraldry, but to see the whole picture of an artistic representation in the VMs  the main thing is to understand, what such details could show in full. We only need to know, what every special reflection substitutes. I'm sure that this is just a style of drawing of the VMs artist/author, particularly these details are not unusual for supposed time of the VMs origin, the rest is unusual. 
Wavy lines (or nebuly lines), when they are not on a coat of arms, always represent clouds, sky, air or steam - all here know.
Blue wavy lines - You are not allowed to view links. Register or Login to view. 
Gold waves - You are not allowed to view links. Register or Login to view.. 
Red waves - You are not allowed to view links. Register or Login to view.; heat
Blue-red or blue-gold waves - the mix of You are not allowed to view links. Register or Login to view.
Sometimes the combination of wavy lines and rays is used to represent You are not allowed to view links. Register or Login to view.
The central rosette of the f86 (Rosettes) contains three artistic ornaments: bulbs, wavy (nebuly) lines and rays


I think, You are not allowed to view links. Register or Login to view. quite fits.