Environmental Art P.1 - Sculpted/Tiling Textures

For this project, I am learning how to create sculpted/tiling textures. 

I followed Method 3 - Sculpting Tiling Textures with Nano Mesh.

Here is how my texture turned out, rendered in Unreal:

More simplified -

More grunge -

Here are the flat textures from Substance:

Moving towards Fortnite's style, I still want to add some more stylistic touches later on because it is still looking more realistic -

More realistic grunge for fun -

Here are my individual maps:

Base color -

Normal -

AO/Rough/Metallic -

Here's the bake on the mesh in Substance:

Here is my reference board. I want to create a texture that looks like old wooden planks, while also following the softer style of Fortnite textures.

Here is my base pattern I created in Maya and then imported into ZBrush:

Here's my render in ZBrush:

A render of the insert mesh brush I created:

Here is my alpha map: