Pros: Nothing men, oh yeah.... just the concept!
Cons: Evertything! Textures are just phototaken, the model is not even close to the storm trooper armor, it's just the default HL armor skinned with some ugly white textures, not realist at all.
Improvements: Start the thing all over again! the most important issue here is improve the textures and make them fit well cuz here i see many textures missalignements. Make a detailer model to include all the extra deatils that a storm trooper suit brings on.