They are both adorable.
I am owned by 5 zebra finches (soon enough six. probably more soon after that. they have a tendancy to multiply^.^).
I noticed that you said they come from south america. Actually, Zebra finches are australian. There is only one ssouth american bird living in my house of 10 birds and she is my quaker kiwi!

They are both beauties. Ever thought of showing them?

Kim, Kiwi, Bo, Sol, Zeb, PLucky, Java, Phoenix, Alphonse, Adelaide and Peepers