I practically re-modelled Grimlock because my first version kinda sucked. I hope this version is better. Comments welcome.
its looking good man, your model seem decent, but your proportions are off. I would suggest importing some reference images, they are the key to a good model. What software are you using?
You're definately starting to get there. It's a big improvement over the last one. Just keep on trying it's the only way to learn.