I recommend using an interesting Rum here to make it less cut and dry and more interesting. I bit too dry for my taste but that can be adapted with a funky rum and maybe including 1/4 of simple syrup.

Interplay between pineapple and banana is fabulous. Maybe I've drunk too much whisky in my time but this, for me, wasn't overly strong at all

strong drink ! try 30 ml pineapple juice, 25 ml banana liquor for more pronounced flavor profile.