@
Roguay
What you uploaded is very pixelated and looks like it has a low PPI.
Also, changing the color doesn't make it "better". It also looks like you jacked with the levels a bit too much.
I don't agree with either of you guys use of the logos either. Its important to learn when other elements in a design takes away from what you intend to be the centerpiece, which is, in this case, the gameplay.
And also, if you intend to do any graphics professionally in the future, you should know that you don't change logos. You can ask the owner if you can change it and if they say no, you don't. And since I'm speaking about amateur mistakes, I'd like to note that you don't give the logos any breathing room from the left or right edges which is a common design flaw. Some empty space can often lead toward a good design.
Lastly... you guys should be providing working files with VECTORS if you intend for other people to edit it. Working with a bunch of flat and rasterized images if there is a better alternative is a no-go.
And for you businesses out there, its very important that you have vectors of your logo. When I used to work with clients that would only provide JPEG images, I'd want to shoot myself.