My first game from scratch - C++ & OpenGL

Well, this is my first game. It is based on Space Invaders...or that was the main idea at the development&start haha :D It was developed in Visual Studio 2010 with C++ and OpenGL. It took me 5 to 6 days to finish the game, the result is what you see in the video and, I know there&a lot of things to fix and improve. Although my expectations were covered in a 40-50% I am happy for this first game I made from scratch: all the source code and the 3D models were made by myself (Yes...they are not so good but are better than the red boxes I used for testing haha), except sound effects (web sources listed below) and the font. I used 3D Max 2011 for the ship, enemies, shields and bullets. Hope you like it and leave your comment.