The ones in the image aren't from Skyrim, though :v
Well, even though the images are Oblivion weapons, he still suggested Skyrim weapons.
These weapons only look good because of their textures. If you made a model out of them, it would be probably 2 different colors and it would look very undetailed, because the model itself is plain, it's the textures that make them look good. Now, you could make them, but they just won't look so cool.