It helped me to think of ‘sensuousness’ as more of a quality or type of ‘me’ being aware, as opposed to being a quality or type of sensing or way or manner in which the senses operate. It’s when ‘I’ am aware of what ‘I’ am seeing in a delighted/wondrous/thoroughly enjoying-of-the-senses manner. It doesn’t matter per se if what I am looking at is visually stunning… it’s about how ‘I’ am relating to what ‘I’ am seeing, not about what I am seeing per se.
Of course when I am wondrously aware in such a manner I am naturally drawn to visually appealing things (if what I am seeing is most appealing at the time), or gustatorily appealing things (if what I am tasting is most appealing at the time), etc…