The scales look good, maybe a bit big on sections of the head but next to the eye looks good. Its hard to see in the pictures but it looks like you havent traced them in yet with a rubber tool. Run a rubber pokey tool in all the gaps between the scales and then with a soft brush dipped in 90% rubbing alcohol swirl it all around over the scales and it will "flesh them out". That is if the clay is oil based, if its water based then a brush with water on it. Hope this helped!