TEXTURE TO NORMAL AND TILING

For my first attempt at creating a texture normal map I decided to make a normal map for a vent texture. The first image above shows the original vent texture.

On this image you could see I created more depth by making the shadows more pronounced.

then I merged layers and surface blur the texture

to make it in to a normal map I when into Xnormal plugin and picked height to normal to make the depth more detailed I duplicated the layer and changed to multiply 

I then used Xnormal plugin used to normalize the normal map.

This is my gloss map

This is my Specular map

This is my diffused map

This is how it looks on marmoset toolbag 2