The shadow-thing is already well presented in other writings, but the background should have much less strong details. It catches the eyes.
Another irritating background-thing: Its perspective seems different than the perspective of your box. They simply do not fit. It's like the ceiling or it's a rotated or skewed straight onto face image. (It resembles some of my own trials when I flipped the image without seeing the wrong perspective until some nearly physical education was given by the owner).
Proper backgrounds can be bought or downloaded or they can be synthesized from scratch. If you want use your own real backgrounds, build and photograph them carefully - as carefully as your main target is wanted to be shown. Note: this is a demanding job in terms of skill, talent and equipment, too.
If your target is only a synthetic mockup, then take the picture with proper lights and background with other box that has nearly the same size and form. This is to see how all should fit. Take a photo also without the fake box for the final use. You must make the shadows and the reflections, but you have now a model.
This is unreal, but can still present the product well: Put the box and maybe the packed tools also to levitate in the air - no contact with the background at all.