You have all the details there but form is lacking, try hard to improve the form, study my mesh and try to form your to have more appealing look, as said you got all the right details in there but form is not really that good, you need to spend more time to nail it and once you do you're modeling skills will go to a new level of modeling ;)
Don't rush, dont move on to the head yet if you ask me! ;)
Don't rush, dont move on to the head yet if you ask me! ;)