Even with blindsight that's much what you can see about from these figures. The difference of blindsense and blindsight is that blindsense can be blocked by walls or some terrain features (and invisible foes having still benefit of total cover which gives them bonus to AC altough you know where they stand) while blindsight goes around them (and unseen foes having no cover and so you can hit them normally). Neither vision gives clear idea what the targets look like visually at all and even hiding these invinduals have disguised their appearance.