It's good, but I have some ideas for you.
I see that you were thinking of an elite while drawing this. However, if you change the form of the face and the anatomy, you would make a unique alien. Try to make it have a different personality from the other games, not blood thirsty species that like violence, but you should make them an ally, or making them the protagonist in it.
I'll give you some advice on anatomy, try thinking of an animal, and try combining another animal, then give them an unusual color. So a dog combined with a cat combined with a reptile is fine, as MtnDew said, you're an artist, you could can choose to make it badass or make them look like a "lowerclass" type of character.
It's what Bungie and Valve did.