The above artwork are the final versions of Amie and Tasha. Eventually, these characters will be added to the punishment system content, along with Agent Davies, with Amie (the girl in blue) being more mischievous, and Tasha (the girl in black) being more authoritative. The artist Silverjile has graciously cleared me posting all the versions here.
If you want to see more of their work, you can find it through the following NSFW link here.