Your little green one is definitely male.
Unfortunately, I can't see the cere of the white one well enough to determine its gender. If you post a full-frontal view of the cere taken in natural light we'll be able to help you.
Please take the time to read through all of the How To Guides, the FAQs and the stickies located at the top of each section of the forum.
You'll find most of your basic questions about budgies and caring for them will have been answered after you've read through all of them.
Congrats on the new birds and welcome! They look so sweet sitting together on the swing! For names I would suggest Winter and Summer but the green one looks to be a boy so Summer probably wouldn't fit (can't tell the gender of the white one with this picture). Sorry I'm not much help.
Hello! I agree that your green budgie is a male. My name suggestions are Lime for the green boy, and Silk if the white one is a girl, or if it turns out to be a boy, than maybe Frost or something. Can't wait for more pics!!
"It is no coincidence that birds and angels both have wings" -Anonymous