modifiying opengles to look better

I am developing an opengles applicatio for ios.
I got a delema, I have purchased a third party tool called dxscene, which present 3d images. While I have been developing the application for ios using opengles.

The model on hand doesn’t look anyway like the good model look in the third party tool:

As you can see some of the polygons are broken. And of course the colors aren’t the same but still… How can I make the opengles model look better?

Is there some reason why you felt the need to post this twice?

… by not having big bugs in your code ?

You are loading 3DS files right ? Not easy to read everything right.

Try with very simple geometry first, to verify your loading code does not forget any triangle, does not reverse polygon winding order, assigns correct colors to correct vertices, etc.