Hello and welcome to the forums!
He's adorable, what's his name?
Are his markings brownish or greyish? If brownish, he's a light green single factor dominant pied opaline cinnamon budgie. If greyish, he's the same thing but greywing instead of cinnamon

It's hard to tell from the photos you posted.
It's great to have you on the forums and we look forward to seeing you both around. Meanwhile, please be sure to read through the forums' many budgie articles and "stickies" to ensure you're up to date on the best of budgie care practices. If you have any questions after doing so, please be sure to ask as we'd love to help!
Best wishes!
