Okay, I'm not saying you don't have the skill to do it. I just think that making a game is hard, and possibly you will get so pissed, you'll just scrap it. You firstly need some sort of experience in working in that industry, I mean, something near related to making a computer games. If you can do animation, then you can definitely make some sort of game up, but it won't be that easy.
I know this may sound harsh, but it's too complex. You need to learn some facts on C++ and use programs such as 3DS Max and Zbrush, to make such things up. You might also have to come up with something for the audio and all that, which gets annoying considering every single frame has to be right for it to seem real. But there's more, and really, I'm not going over it all.
Maybe you should learn stuff like this at College or University, because you'd see how things are incorporated and what not, then you'll probably be able to make yourself your own Game. And reading your title, a game development company? It's better to be with one rather than start your own, it would be hell for you, financially.
This sounds harsh, but it's the truth. Probably you need to see a real company/organisation making a game, it's all stress and worries etc.