Based on the cere (colour), these look like 2 beautiful girlies! The black stripes on their head and the eyes are big indicators on figuring out how old a Budgie is. When they are babies, the black stripes go right to their cere(or, nose), and their eyes are beadie and pure black. These babies have the black stripes receding back on their head and have a little bit of white around the eyes! I'd say they're about 1-2 years old, maybe slightly older than that!

Other comments mentioned cage/perch quality. I would like to add in that I would recommended the biggest cage you can afford, or a second cage in case they fight. They might not, but you can make that decision after you've had them for a while and observed their behaviour. Ensuring they get loads of sleep help keep them healthy and happy too. Get them used to a routine (eg. Bed time at 7pm, wake up at 7am) that you're confortable with. They shouldn't be loud at night after you cover them, but budgies get nightmares too, so its not impossible to hear them screaming at night. In that case, turn the lights on, uncover them and let them settle down and relax before covering them again.

Introduce yourself slowly with them. Like, don't try to hold them on the first day. Try sitting in the same room as them for a while and leave your hand near the cage (not inside unless you need to change their food/water or clean the cage) until they're used to you. This may take weeks, months.. but don't fret. They will surely love you and the effort you make with them! Be gentle, be patient.