"Forbidden - You don't have access / on this server" problem

[Regigigas]

I am trying to view these images.

http://img15.pixiv.net/img/duckbeans/1414488_m.jpg
http://img13.pixiv.net/img/sa-ka-na/1569088_m.png
http://img04.pixiv.net/img/airgreen/200577_m.jpg
http://img03.pixiv.net/img/kokutou/343808_m.png
http://img11.pixiv.net/img/metaknight_74514/4544020_m.png
http://img33.pixiv.net/img/hurudore/5220517_m.png
http://img16.pixiv.net/img/lgw7/3816659_m.jpg
http://img12.pixiv.net/img/kurozakiaki/3369563_m.jpg
http://img07.pixiv.net/img/ssssss/3334097_m.png
http://img25.pixiv.net/img/hugh-ga/3333167_m.jpg
http://img12.pixiv.net/img/monoka/2630740_m.png
http://img19.pixiv.net/img/ikeii/2347239_m.jpg

And when ever I try to view one of them. Let's say I try to view the first one, so I view the first one and I get this:
"Forbidden

You don't have permission to access /img/duckbeans/1414488_m.jpg on this server.

--------------------------------------------------------------------------

Apache/2.2.9 (Debian) Server at img15.pixiv.net Port 8080"
What do I do?

[Zet]

Well generally it means you don't have the permissions to access them via those links. So make a pixiv account and then go view the full size image to save them


edit http://img25.pixiv.net/img/hugh-ga/3333167_m.jpg works for me, I guess it is an option like DrCoolSanta mentioned

[DrCoolSanta]

Works perfectly for me, maybe they fixed the issue now?

Anyways, it could just be that they had your IP banned on prixiv.

EDIT: Since only the first one did, maybe prixiv has options for people to choose whether to let anybody else view them or not.