In search of a perfect base

To finish my first platoon i need to choose a base, and i can't find a perfect one for my army. I was testing different combinations and still there are a lot of work before an ideal base will show up.

Base: Steel Legion Darb

Drybrush: Terminatus Stone

Base: Steel Legion Darb

Wash: Agrax Earthshade

Drybrush: Karak Stone

Drybrush: Terminatus Stone

Base: Earth (Vallejo)

Wash: Seraphim Sepia

Drybrush: Terminatus Stone

Base: Earth (Vallejo)

Wash: Agrax Earthshade

Drybrush: Terminatus Stone

Base: Scourched Brown (Rhinox Hide)

Drybrush: Balor Brown

Drybrush: Bleached Bone (Ushabti Bone)

Drybrush: Terminatus Stone

Base: Vermin Brown (Scrag Brown)

Wash: Agrax Earthshade

Drybrush: Terminatus Stone

This one was done long ago for Lord Comissar, and funny thing i can't repeat it. In my opinion this one is best out of all. (Sorry there are a few glue drops on it)