Here are some photos from a day spent at Istanbul earlier this year.
There was never long to wait for a Turkish Airlines 737 - TC-JHU had the best livery, though:-

I only saw one of Turkish's A.340:-

Plenty of 777s, including TC-JJM:-

and TC-JJO:-

A cargo A310:-

Although they are by far the dominant carrier, Turkish don't have the airport to themselves, with Onur Air having a presence at the airport:-

One of the first aircraft I saw was Mahan Air's EP-MNK:-

Iraqi Airways sent an A330 as well as this A320:-

Libyan provided an A330:-

Ariana use A320 equipment to Istanbul:-

Yet more A320 action was provided by Etihad's A6-EIW:-

Royal Jordanian's livery always looks good - here it is on an Embraer:-

I hope the photos are of interest - more can be found at https://www.flickr.com/photos/indiaecho ... ?details=1
Neil