Mysterious and eerie atmosphere! Most trolls I've seen don't have clothing other than a loin cloth. I think it would be a wee tad to cold to be out and about dressed like that were you are!
If it makes you feel any better, Northy, while I had a pantless troll like @summerfield has when I was young. However, all of the trolls I've encountered as an adult have been wearing pants...can't always keep them on...but they, at least, start out with 'em! I think you're safe in portraying this troll fully dressed. Just sayin!
Really like the tension in this shot. My eye is drawn to the figure, but keeps checking what's at the end of the underpass. Love those pools of light on the ceiling too.