Identify the subject and the context needed to understand it before moving the crop handles. In Image Cropper, remove distractions but leave enough space around faces, labels, or objects to avoid an awkward cutoff.
Preview the crop at its eventual display size and aspect ratio. A close-up may reveal detail but hide location; if both matter, share an overview and a detail image. Save the source separately for future crops.
Which part must remain visible and readable?