The guide I used a lot, Strolling through Istanbul, is harsh on this mosque: "It combines elements from Moorish and Turkish, Gothic, Renaissance and Empire styles in a garish rococo hodgepodge". The mosque was built in 1871 for the mother of Sultan Abdül Aziz. It seems to be by the Armenian architects Hagop and Sarkis Balyan, who built some of the late Ottoman palaces along the Bosporus.
In December 2015 I added some shots. Temperatures (and colour temperature) were lower then.
Istanbul Pertevniyal Valide Sultan Mosque June 2004 1154.jpg
Istanbul Pertevniyal Valide Sultan Mosque June 2004 1155.jpg
Istanbul Pertevniyal Valide Sultan Mosque June 2004 1156.jpg
Istanbul june 2011 8721.jpg
Istanbul june 2011 8722.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6621.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6622.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6623.jpg
Istanbul Pertevniyal Valide Sultan Mosque June 2004 1157.jpg
Istanbul Pertevniyal Valide Sultan Mosque June 2004 1158.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6615.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6616.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6618.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6619.jpg
Istanbul Pertevniyal Valide Sultan Mosque June 2004 1162.jpg
Istanbul Pertevniyal Valide Sultan Mosque June 2004 1163.jpg
Istanbul Pertevniyal Valide Sultan Mosque June 2004 1159.jpg
Istanbul Pertevniyal Valide Sultan Mosque June 2004 1164.jpg
Istanbul Pertevniyal Valide Sultan Mosque June 2004 1161.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6610.jpg
Istanbul june 2011 8719.jpg
Istanbul june 2011 8720.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6600.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6601.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6602.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6603.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6604.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6605.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6606.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6607.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6608.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6609.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6612.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6613.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6614.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6611.jpg
Istanbul Pertevniyal Valide Sultan Mosque december 2015 6620.jpg
Istanbul Pertevniyal Valide Sultan Mosque march 2017 2506.jpg
Istanbul Pertevniyal Valide Sultan Mosque march 2017 2507.jpg