What Breed is My Dog?

I'm not sure what breed my puppy is. I got her from a person online and she told me that she's a Yorkipoo. My boyfriend and I have a yorkipoo already and they look absolutely nothing alike. I've done some research and to me she looks like a Welsh Corgi but her legs are long so she's mixed with something, I think. I don't want a dog that gets big. Will she?

By Briya