I'm wondering where the blue haired girl and the the cybernetic-looking girl(plus that brown fox girl) are from.
You see, I notice that there are other threads on MOE that have more fanart of these characters. AFAIK those 3 characters do not seem to be randomly-made ones.
The blue haired girl's name is Sakura. She's the default heroine of the program "Ukagaka"(formerly "Nanika") Just try out the program; You'll see why it can be so popular.