You're 18...and you are providing photos like that? Incredible. You are REALLY setting yourself up well. Not like Facebook photographers who say "I just started a biz(business, whatever) and I think I'm gonna do great because all my friends and family and even a few strangers said I would!"
KUDOS to you for taking business...learning the business aspect of all of this. I hope you don't give up photography. You have a very artistic and natural eye for photography and these look like well thought out professional photos, not noob photos. If this is you as a noob, I want to see you as a pro.
The only thing I noticed was that line in the box of the third pic as someone else noted. Otherwise, I love your pictures. They're very visually pleasing to me and I'm rather picky. I expected this to be one of "those" noob threads and I'm so glad I opened it and saw this.
As for me, I'm a 24 year old girl-next-door type who is a true noob and I just love taking pictures and have a fairly natural eye for such things, but don't have the time/money or the motivation to go full force, especially since there are a LOT of photographers in this area and making a business of it would be very difficult. So I just shoot for fun and do an occasional real shoot here and there for friends and family.