Looks nice!
As for game development, let me give you some helpful tips:
1. For learning Unity, try this site:
http://walkerboystudio.com/html/unity_training___free__.html
These are some of the best tutorials I've found and their free. Once you go through these there is a course at Digital Tutors to give you some advanced knowledge of Unity as well as discuss the art aspect of game development (That is down the road though).
2. You should be familiar with programming. You don't have to be an expert, as that will come with time but knowing basic things like data types, classes, functions, and the flow of a program will help cut down on frustration immensely. Since you are using Unity a lot of the under the hood work will be done for you and you will only need to script for the most part.
3. Don't give up on Blender! Cheetah does seem nice and easy, and I've never dealt with Wings 3D but the newest version of Blender has a redone UI and is a lot easier to use.
That being said no 3D program is truly easy, they all take lots of time, practice and patience to learn. The payoff though is completely worth it. (I myself use Maya).
Also game assets can take a long time to make. I am making a gun at the moment and here was my workflow:
Model high res gun in Maya -> Sculpt fine detail in ZBrush and create diffuse, spec, and normal map-> Export model to Topogun for generation of a low res mesh -> UV map low res mesh in Maya -> Export low res mesh with high res maps to Marmoset for test rendering -> Import into game engine.
Depending on your graphics style you may not need all those steps, and for a basic game you could get away with making a model in your application of choice, UV mapping it, applying textures and be done.
4. Test your workflow before you start making graphics. Start simple. Export a simple cube or something from your 3D modeling app of choice into Unity. Does it appear correctly? If so do it again with a texture applied to it. Chances are you'll have to manually assign the texture in Unity but no biggie, keep doing it in small steps and you'll be very fast at it eventually and things will sail a lot smoother than if you make 100 assets, import them at once and they're all screwed up.
Anyway I hope none of that scared you away, the key is to start simple and expand. You will learn so much that way and have a much more enjoyable game development experience.
EDIT: Also if you are a student you can get Maya for free from Autodesks website, but honestly I'd suggest learning Blender incase you run into a case where you no longer have access to Maya that way you can still get your work done but for free vs $8500 or whatever Maya costs now.
All of the 3D apps do almost the same thing anyway, and most would say that Maya doesn't have the best modeling tools (those awards usually go to Modo or Cinema4D).