That's all well and good that you got a license, but that doesn't really mean much other than you can sell games. I sold a .dll I programmed which allowed the programmer to make a single connection to control everything to a SQL database, either MSSQL or MySQL, for $200. Does that make me a software company? No. First, to be an official company you must offer a line of consistent products. Very few times has a company EVER made it as a recognized company just offering a single product. Not to mention, I'd assume you're not selling anything that hasn't been done before / is an original idea. Not to mention, a recognized company in which you could call yourself "CEO" would have to consist of at least 3 or more people. You have you, and a friend. I seriously doubt you hold much power over a single other person. I know CEO isn't about holding power over people, but let's face it, even if he left your "company" wouldn't be severely damaged. You need a startup investment, first off. Secondly, you need a product that is going to blow peoples minds. A game "similar to Rally X" isn't going to get you much money. People demand something that is different. Look at Minecraft. It's got crappy graphics, crappy sound, etc. but it's popular because people see something different in it you don't really get with any other game. This is why I'm ALWAYS going on about originality in game making, because there are thousands of game companies in the world, and most of them offer nothing original or of value.
Oh, and for being a "game making college graduate", it surprises me that you've gone down to the level of using Game Maker. Don't get me wrong, Game Maker is good in its own right, but if you have much more experience than most people, why not go for something like Dark Basic Pro? Something that actually lets you step outside of basic arcade games.
I just now realized I've had a typo in my signature for the past 3 years.
