I think you have done this well, the only thing letting you down is the pic, if it was a touch clearer the score would go up, your colours are nicly chosen and the skin seems well done good effort
Paint needs to be thinned down. Blacklining needs to be bolder in some areas to better bring out the details. The most nicely done areas are the red bits. The model will score better if the other areas are highlighted the same way.