I'm also thinking about changing their design to that of a griffin, or gryphon depending if both are the same thing with different spellings. The color will be the same, it's just that they would have turfs of feathers like ears, talons for the front legs, lion back legs, and a bird tail. Oh, and a pair of wings of course.

This is how I envision griffins as a general statement. They can walk on their hind legs only. The males will still have that eyebrow crest. Their eyes are also fixed in place, like an eagle's. They also have sensitive hairs on their elbows, like a cat. Their bodies will be covered with feathers at the head, wings, and tail, but the rest of the body sports fur. Their scaly arms are covered with fur to the talons, like some owls. A skreek will stand as high as a man. In technical terms, valloians are proportionally bigger while skreeks are a foot taller by average.