I need to improve my website's current landing design

I need you to study my company website's landing page and then send me back the suggestions and improved version on PSD or other understandable format.

I do not need the website to be redesign. Instead, I want to make the website to be better by touch up certain areas like color, images or other small things. Visit the following short link to load my company's website

http://goo.gl/YdlzJM

For your proposal, please let me know what you think of the website. Many thanks!
* note: just study the website design. (exclude the design flow and the game itself).