Come back after 16500 images taken - a mass cull to do - <1000 images were taken in Calcutta though.
The imagery was fantastic. Could not take images inside the temples (understandable!) but Trongsa and Panukha Zhongs were incredible. The walk to Tiger's Nest is quite a feat - don't do it if you are unfit it takes 3.5 hours to go up there (taking into account stops for photography) and 2 hours down... Last 30 mins hips and knees are in agony... Cameras and mobiles are not allowed in there. worth a visit though.
Did a festival in Ura, the Pakchoe. It is a 4 day event and we ended up going on Day 4. Suggestion is to do more research than we did, we limited ourselves by our choice of flights, as we were visiting my OH's work colleagues in Kolkata. Airlines are great - Drukair and Bhutan - approach to Paro was slighly underwhelming in our ATR42 (thought Vagar was more impressive - but the take-off is quite something, then you see Everest on the flights to Delhi and Katmandu...
People are photogenic, landscape is stunning. What's not to like. It is not that expensive either. Most of the cost of the trip is the visa ($100 per person per day) and the flights to and from Paro.