who are these characters?

The girl on the left is Dismay, basically a mashup of Daisy, Misty, and May. The girl on the right is either a random Team Rocket member, or a related character to Dismay.

Tain said:
The girl on the left is Dismay, basically a mashup of Daisy, Misty, and May. The girl on the right is either a random Team Rocket member, or a related character to Dismay.

....What

Girl on the right reminds me of http://4chanarchive.org/brchive/dspl_thread.php5?thread_id=12582453&x=unknown+the+pokegirl

Yeah, I think that girl on the right is Unknown.