You chose a range of images involving a singular portrait of a data thugger, is that correct pronoun? You also chose what is called in design, an icon.
I wonder, are these images more of a "moodboard", or a collection of "ephemeral objects" and imagery that might inspire a book cover? If say, you're book was chosen by a press that gives you limited pre-made patterns and colours to work with, what shapes and colours might you glean from your chosen images? Have a look at the Pivot books by Palgrave Macmillan for their existing book covers to see what I mean: https://www.palgrave.com/gp/campaigns/palgrave-pivot? If you had tlo choose from the existing colours and covers what would you choose? What shapes and colours would be the essence of your research ideas and arguments?