Wing Flames : Pretty crafted well winged-flames. Their particles ain't barely messed up when in motion. Stable in movements, unlike other wing flames. The color selection were appropriate aswell. As expected from well-known forger. I'd say around 100k is suffice, or 140k usually what peeps pay off for it.
Stable Flame : Stable is still stable. You might draw and painting anything on it. Pretty much there's endless combination for it. But i heard somewhere that stable flames weren't working anymore, were they?
As for now, 40-70k are normal prices for them based on past experience.