"Oh I can definitely feel how real he is....!" In more ways than just touch apparently. "That part you won't have to worry about!"

The visible amount of focus Yugo appears to be putting into the spell would certainly explain for observers why he left most of the action for his dragon.

Now that they're big though, it might be slightly odd for Clear Wing to have a vivid green glowing gem at their sternum very unlike their teal crystals, but it's probably nothing. Though it'll flicker if Yugo wavers on the spell.