Asking for someone, not my image
How do you make the model show in the picture reflect so well?
If that is Roblox Studio, you can do this by making the floor transparent and cloning another plane up-side down, placed on the other side.
Most likely the user who created that didn’t actually accomplish this in studio.
This effect was probably created in a graphic design program such as photoshop, as roblox doesn’t support that level of reflection at this time. (To my general understanding)
I never seen anyone do this on studio, in my opinion it think the person did it on Adobe photoshop or another image editor.