I checked out your FB page.
Your treats look a little all over the place. And by that, I mean you have cakes, cake balls, pizza, pretzel rolls, dessert cakes, and a variety of other things, which look quite delicious.
If you are doing this from home, I (personally) would focus on one thing or another - something that you will become known for, maybe some things that others don't offer. That will help you focus on what it is you want to sell. And don't try to sell to friends and family....very rarely will they expect to pay the same as your target market.
If I didn't bake and needed a certain kind of cake, I would go to the grocery store first for two reasons. One, the immediate convenience...they have what I want, when I'm in the mood for it, without having to special order it. And two, the price is a lot cheaper. An atrocity, I know...but the majority of people out there wouldn't know good baking if it slapped them in the face! BUT if I were PLANNING for a party, I would be putting more thought into the event and would considering your services.
If you are looking to do custom cakes, like ones seen here on cakecentral, I would take some decorating classes to improve your skills. Your Lightning McQueen cake is cute, but I wouldn't consider it professional quality. I am not saying that to be mean, but you asked for help.
So I would focus on a few things. Maybe cake pops, those pretty, colorful macaroons that I'm seeing a lot of these days, cupcakes (but use more icing on those!). Go on a baking spree and create some pretty table-scapes with your lovely items on them, make them festive, color-coorinated or themed. Take some quality pictures. And post it as an event option. When done with your pictures, package the goods up and donate them to local business that would potentially drive business your way (flower shop, bridal shop, party planners, etc.)
You could offer people dessert bars with lots of different options, if you enjoy baking many different kinds of treats. Have categorized lists of what you offer at different price points (you can get X amount of Y for $Z.00). Allow them to pick and choose what they'd like for their buffet.
But if you are doing this, I would steer clear of custom takes which take tons of time. Maybe in the meantime you can hone those skills and make a switch to custom cakes in the future.
Good Luck and keep us updated!