I give up. Personally I don't see any resemblance and I don't have any will to redesign my character after having it crushed.

Not that it's going to help save my character, but this was what I was modeling Afterimage after:

[https://www.youtube.com/watch?v=9oSCPkRQrOs](https://www.youtube.com/watch?v=9oSCPkRQrOs) (Ability at just past 0:44)

In contrast to Blake's Shadow semblance:

[https://www.youtube.com/watch?v=Y4REfVDtqo0](https://www.youtube.com/watch?v=Y4REfVDtqo0) (Semblance just past 1:15)

So, in my honest opinion, the two abilities are nothing alike.