Reading some more about black and white pictures and looking at few of the famous ones. Trying with these pictures adding as many texture, patterns and color gradients.
Some articles recommend shooting in RAW+jpeg mode and converting the picture from color to monochrome using photoshop/gimp. There is also recommendation of taking shots with both color and monochrome to understand the subject matter and how it would render exactly in monochrome.
Note: The pictures was shot with monochrome mode and is unedited.