Well, I've found some better (Very High-res) and work safe versions.
http://safebooru.org/index.php?page=pos ... &id=370757]02 - Subaru
http://safebooru.org/index.php?page=pos ... &id=442117]04 - Vita
http://safebooru.org/index.php?page=pos ... &id=455604]05 - Fate
http://safebooru.org/index.php?page=pos ... &id=456015]03 - SPOILER
And one otherwise OK but possibly unsafe version.
http://gelbooru.com/index.php?page=post ... &id=750608]01 - Nanoha
http://safebooru.org/index.php?page=pos ... &id=370757]02 - Subaru
http://safebooru.org/index.php?page=pos ... &id=442117]04 - Vita
http://safebooru.org/index.php?page=pos ... &id=455604]05 - Fate
http://safebooru.org/index.php?page=pos ... &id=456015]03 - SPOILER
And one otherwise OK but possibly unsafe version.
http://gelbooru.com/index.php?page=post ... &id=750608]01 - Nanoha