And QueenOfDorks style is so original? Please. Only thing those two have in common is the ◕ ◡ ◕ face, which is as common as asians are in Japan, unless all cute things look the same to you. This -> [link] basically sums up my opinion on this.
I love both artists, but I prefer Keito-san's works. She hardly uses black in her works, making the overall feel a bit softer. The designs are different, as well as she has a bigger selection of things and her creations have that pleasant home-made feel to them, while Queenie's works are more bright and city-like.
So I advise you to take a better look at things before calling something a total rip-off.
If you can't see how obvious the rip-off is, I feel sad for you. There's a lot of variety in that type of cute stuff art in Japan. QoD manages to make something that's different of those, which is admirable. Keito only rips her off in an obvious manner. Sure, it could be worse, at least she ain't tracing, but it's close enough to be a rip-off, which is never pleasant to see.