I think I deserve a better grade; should I talk to the professor?

[NeedsMoreNuts]

A little background:
I'm a freshmen this year at a small liberal arts college. I'm taking a 200-level studio art class. All of the other students in this class are art majors, mostly juniors and seniors. I am not, nor do I have any intentions of becoming, an art major. I am a pretty creative person in general though. The main reason I'm taking this class is that I came in with almost a full year of credits, which has enabled me to take some fun classes outside my intended major. I've really been enjoying the class, my peers, and professor.

The only problem? I got my midterm grade for the class, and I'm barely pulling a C+. I've been to every class (including an optional field trip on a Saturday morning), I've never been late, I've always had my pieces ready for critiques on time, and he knows I've been working a good deal outside of class. The only feedback I've gotten from the professor is during the actual critiques; he's never given any sort of actual grades for me to see after the fact. It's not his "style" to hand out grades every few weeks I guess. I've just assumed my grades have been fine, until now. It feels like I'm being punished for having less artistic ability than my more advanced peers, despite the fact that a good deal skip class and/or turn in projects late. So I guess my question is, what should I do? Sit quiet and hope I can pull my grades up? Bring it up to the professor that I'm not sure why my grades aren't up to my standards? Be more forward and outline why I think my grade should be higher? Help me out.

PS. I know I seem like a grade-grubbing nit for complaining about a C+, but I have to have a 3.2 to keep my scholarships. Right now I have a 3.1, which is killer since pretty much half of my tuition is scholarships.