I don't know witch I should focus on drawing with. Pencils tend to be great with sketches yet can do so much more with shading and such ideas I can't describe. black and white art ideas are great for outlines and fun little or big comics depending on what you're into.
Drawing with only colors is quite hard to do yet is a great challenge yet it is so fascinating to figure out how to draw with.

So my question is what do I work on more out of the three choices?

And if I should focus on romances?