The perfect shots I do not believe do this figure justice.
The colors actually have a lot more depth to them, and her facial structure is not as 'off' looking when viewed from a higher angel/further back.
No, it's not lipstick, just the color used for inside Konata's mouth. Again, this is more evident from a more common angel.
Naturally, I had to get Kagami with her as well... They are just too cute as a set!