Yeah, Yumi and Silva's portraits will be changed during the final release for sure. There is a lot of characters that will have those temp faces but they are a temp thing.
As for that J-Man grammar thing, I've been trying to take a little more caution into what I type. I have a unhealthy tendency to type fast without looking back on what I wrote, ha ha.
EDIT: I guess I'll put this on that Release Something to show off something. :p