[HELP]Identify the Games from these Images?

[MFrost]

Hey all,
I was wondering if someone could identify the game's titles from just pictures of a heroine? I try google search, but it does not work very well at all. They could also just be artwork, but just in case I ask.
Will also be posting any other images like this in this thread if anymore are found!

Spoiler: Request as of 24/9/16:

 

[SaitoEXE]

The second image is from Purple Software アマツツミ https://vndb.org/v18852

 

[freddy91]

1th - https://vndb.org/v3018
2th - https://vndb.org/v18852
3th - Magazine: Dengeki Moeoh / Artist: Sakura Yuzuna https://chan.sankakucomplex.com/post/show/5022114
4th - https://vndb.org/v16458