I challenged myself buy using just 4 colours: Dark Blue, Dark Brown, a reddish brown, and a bit bright yellow.
Also used a drop of green and red for the eyes and the nose
I thought about adding grass but then painted over it, you can still see some traces. The scan unfortunately didn't catch all hues of light blue used, but it is fine I guess.
Based on a sketch of a Lynx/Eagle Gryphon I did in school last week
so no reference used, except for a book on birds for the wings.