Product Brochure Presentation

This is my first to make a brochure presentation because all I've done before are kinda flat but this time I want it to be more presentable and I was just experimenting on the shadows and lighting effects. All are done in Photoshop.

I don't know if the placement of my lighting, shadows and reflections where right. I'll let you decide if it's good or bad, I'm open to your comments, suggestions and recommendations..