Hi guys! Thank you for all the comments! About the teams there wasn't my choice but I will be happy to paint others if someone gives me some to paint on commission!
About the green: since I made an error due to a bad image, I've painted the Green Bay mascote with black t-shirt, but when Bart told me the mistake I've had an idea: instead of repainting everything I've used the color modulation tecnique: it is used a lot in tanks painting and consists in building the lights and shades with black and white and after the "base colour" is gently sprayed over in veeeeryyy thin layers. And I've made the same here but with the brush! Because the logos and numbers were already painted! So I've used an old dark angels green in thin layers over the black base very diluited and I've just added a little lighter green for the extreme lights and all was done! For who want to know more about this tecnique I'm posting a link to a video tutorial here:
https://www.youtube.com/watch?v=uGP5jMRhjl0
Cheers!