I used an old arm I had spare from the original first Dreadnought I painted to swap out the twin CCW fist as I don't know if that's a 'legal' loadout anymore? To match the bone accents of the first Dreadnought I painted the Dreadnought Close-Combat fist also in bone.
I added a skull on a chain underneath the Assault Cannon to 'Relictor-fy' the dreadnought a little. This dreadnought goes to 5th Company.
Here was the original scheme from Goddenzilla
I also added a WFB shield boss to the front panel like all my earlier vehicles.