I prefer the gas pump on the right.

I'm not familiar with 3D/graphic arts terminology, but the "depth" of the texture on the left image seems too exaggerated.

What ever art [i]style [/i]you choose, you should consider some simple rules to considerable improve the visual quality.

One important rule is consistency. You have very hi-detailed textures on the really low-poly/rough model, either reduce the details on the texture, or increase the details on the model.

The second rule is the proper use of references. If you want to go for realism, your properties should look like real one (google image search is your friend here ).

There're more rules to consider, but I think that it would be best to start learning them step by step. Just think about given critique and try to improve on your skills and you will see, that you will really improve quite quickly.

Thanks guys!