I would imagine graysons dragon to look like mooshoo from Mulan. Mostly for sh*ts and giggles though, just;

Grayson- OMG THE DRAGONS HATCHING

Dragon- *pops out of egg* HERE IS THE POWERFUL, THE PLEASURABLE, THE INDESTRUCTIBLE MOOSHOO...

Grayson- no get out I'm not dealing what that Mulan war sh*t