If you are trying to "soften" your black/white smokey eye, try using greys, browns, taupes or purples. I love using Gold Stroke pig, Sweet Sienna pig, Mulch e/s and Moth Brown e/s as the crease or outer V shade. Using black e/s (Carbon, Black Tied, whatever...) is going to give you more of a bold, "night time" look than a softer color. I'm really loving using Remotely Grey from the N Collection right now.
And if you are just trying to add color to a smokey eye, I tend to just add that color to the crease. For example, my standard smokey eye is a thick line of kohl power liner (usually Feline) along my upper lashline, then smudged upward to the crease. Then I pat a dark brown shadow (my fave is Rare Specimen, but that's LE) over the smudged liner, almost up to the crease. Then I add black shadow (usually Carbon) or a dark grey shadow (Knight Divine) to the crease. Then right above the crease and in the crease, I deposit & blend a colored shadow (my favorite is Humid or Nocturnelle). Blend you little heart out & highlight your browbone. This is kind of the opposite of what MACATTAK said & probably not a "daytime" eye, but you said you like dramatic eyes, so give this is a shot if you want
HTH!