Your style is kinda'...softening. The shell is cracking, you must try the smudgeing on the background a bit different xD Both look great though. For the first one, the colors seem like most of your tags. Try...a darker blue. I'm not liking the text, if it's bigger than it's plus material. I like the details coming behind the stock, very nice. Otherwise, hott. For the second, I'm loving the c4d behind the girl. Once again, smudging is similar. Make it more contrasted and has depth, people love smudge settings like that. I really don't have to say much, it's really good.
