Luvwine. Lovely shots. Good to hear you were unaffected.
My wife insisted we cancel our planned one month Xmas/New Year visit to, and travel via, Istanbul (we had to cancel the same planned trip, at a substantial financial loss, 2 years ago because my wife slipped 3 discs in her back) and on to Valencia.
We would have been returning via Istanbul, staying a week in each direction, just at that time. Our Croatian friends (currently just pen pals - known via FM) have just returned so I'm happy that they also escaped any involvement.
The location of the bomb, close to the Blue Mosque, shows that it was specifically targeting tourists and large crowds. Very sad. This is really going to hurt Turkey, with Russian tourists already banned from visiting the country.