So cute! Do you want your Carnosaur to be cute...? But seriously, I think that scheme can work, but I'd use a bit darker yellow (maybe a mix of Ieyden (?) Darksun and some brighter yellow) and make it go all the way up to it's head. Also, I would be tempted to use a bit more blueish tint on the ventral area. Good luck!
You don't get to eat your regiment if you don't do the trick! There you go! Whose a good top level predator? You're a good top level predator!
I think it would look good with the main body bluefish couloir then the scale parts being the yellow colour - I think done right would look awesome!