Are the Elemental Dragons inspired by Guild Wars 2 Elder Dragons?

After seeing them the only thing that comes to my mind is the main antagonists of GW2, the Elder Dragons where each one is linked to an element

https://3.bp.blogspot.com/-co5IPH9mqs8/VxaW9nDROTI/AAAAAAAA5-A/J7T2-XLfa9Q-vB_nTkWYCsky37wsUf8TQCLcB/s1600/mid_season_collage_v2%2B%25281%2529.jpg

http://41.media.tumblr.com/b93a15b735ac53f1e9aeb3bd370b6b9f/tumblr_mjietrpD9H1rtdsh3o8_1280.jpg

http://cdn.gamer-network.net/2013/usgamer/guildwars22.jpg

http://i.neoseeker.com/n/4/kralkatorrik_art_650.jpg

https://wiki.guildwars2.com/images/8/80/Jormag_norn_intro_concept_art.jpg

http://mein-mmo.de/magazin/medien/2014/05/mordremoth_gw2-980x500.jpg

There is a 6th one but we don't know how he looks like