Very good!

About color scheme i like both )) Just first is more funny, but please put text into smog
I am mark pieces a red line, when in older version look it better, in my opinion.

The breast with stomach great nice playful line in blue-yellow, but in last edit you emphasize this line too much.
Me like his bone on shoulder and elbow - it's compatibility with his head, which crowned many bones.
His foot have more readability early (now too much shadow).
And scales in begin tail have intresting flash. And light scales (on yellow-blue) have flash look as reptile - it's good!