Better photos of the kit are available here: https://www.airlinercafe.com/photosearch.php?cra=58&man=182
When I acquire a kit, I'll do decals for both Air Niugini liveries for it.
2008-2011: https://www.airliners.net/photo/Air-Niugini/Boeing-757-256/1628823/L
2011-2014: https://www.airliners.net/photo/Air-Niugini/Boeing-757-256/1910138/L
(The Air Niugini plane was leased from Icelandair, so the kit's pax window & door configuration is correct for this)
Cheers!