I'm sorry but this is going to sound very harsh, yes I know you're only 13 but that isn't the issue for me, we all have to start somewhere and we'll be happy to give feedback to help you improve.
However on your site you say
I am a Graphic Designer who just started. I have had Photoshop for about 3 weeks and have had Cinema 4D for 1 Week. For now I make logos and banners for free to get started!
and above you say
pepsi_tank2 said:
Please consider that I'm a 13 year old and have not gone to any lessons for programming.
This is what I have a BIG issue with. The fact that you're offering services to clients when you don't have the experience or knowledge to offer the services. Not only are you wasting the clients time you are in most cases offering them substandard work. If this is a field you want to get into then your work's quality and your reputation are two of the most important things you have.
You're also going against best practice in using photoshop for logo's, this is not the right program for logo's, we'll all pretty much tell you it should be illustrator for logo's except in certain circumstances.
Based on the work you don't have the understanding about colour theory, about layout and composition and many other aspects of what makes a good design. There is a huge amount of consideration that goes into the design of a GOOD logo.
For someone with only a week to 3 weeks experience the images are fine, you've obviously found certain features and run with them but you still have a long way to go. Learning the basics about colour theory, composition, layout and the right tool for the right job (pencil/pen and paper is always a good starting point) will help. As to the website, well it's just a black page with images centred so not really much to comment on if I'm honest.
If you want to get more experience look at past competitions/projects on people's sites or on forums and have a go yourself, either trying to replicate the 'winning' designs or by coming up with your own and asking for feedback from people like us.
We had a couple on here but the original threads moved and I can't find it (wolf soda if any admins read this), it was an 'open' brief but it would be a good start. Alternatively have a go at some of the older sketch comps etc.
Like I said this was going to be harsh, but don't let it get you down, design is one of the most difficult lines of work to get into and it's also one of the only jobs where you can get your work rejected and you need to go back to the drawing board to start over, it's all part of the process of creating good designs.