As per the comments above, that is a really lovely blue-front. My only advice to add is to take your time over training, don't panic and feed loads of fresh fruit and vegetables (my greys love cooked veg including sweet potato, broccoli, peas, sweetcorn, green beans etc). Do they enjoy bathing? Many Amazons in particular love being gently misted with warm water from a plant mister. Greys can be a bit less up for it but they do benefit from moisture on their feathers. A good calcium supplement (powder) is always a wise investment (I usually feed it in some mashed potato or scrambled egg). I hope you have lots of fun with your new pals - it's hard work but they can be the most wonderful friends and it's such fun seeing them enjoy their food, playing with branches etc.