Looks like you had a very clean yeast cake without much hop debris and break material, so I don't think you need to wash any further. This is pretty much what mine looks like as well after a single wash. I strain my wort through a fine mesh when pouring into the fermenter and also have almost no debris/gunk in my fermenter because of that, which makes washing yeast very simple.
On Deck: CaliCommon, Amber, Wit
Primary: Munich/Cascade SMaSH, Dubbel
Secondary: Petite Orange
Bottled: Blé de Minuit, Belgian Stout, Fuller's London Pride, Tripel Wit, Red, APA, Dubbel, Oatmeal Stout, RIS, Wee Heavy
Kegged: APA, Doppelbock, Spiced Cider, C3IPA
"Beer... Now there's a temporary solution!"