To learn what’s important for black and white photography you need to come on one of my landscape photography courses!
For successful black and white you need to pay more attention to what you put in the picture and where the light is. Less is usually better. Shapes, textures, tones, lines to lead into the picture and lots of other things all make for strong images.
If you can make good black and white images then your colour work will improve because of the extra structure that you will put into your shots.