A few nice Taxi to Airport images I found:

Vietnam-based Jetstar was preparing for take off
Taxi to Airport
Image by Ferry Octavian
VN-A561 Jetstar Pacific A320WL with the Changi’s crowd in the background..

Airbus | A320-214/SL | Lufthansa | D-AIUE | Frankfurt/Main | FRA | EDDF
Taxi to Airport
Image by Christian Junker | Photography
One of the newest planes in Lufthansa‘s fleet is this Airbus.

Delivered on 28 April 2014 it is equipped with 2x CFMI CFM56-5B4/3 engines and carried the test registration D-AXAO.

It is here seen taxiing out for a runway 18 departure as LH1112 to Madrid, Spain.

This photo can also be seen here: