When you say style (a) or style (b), what are you talking about? We need both content, are you talking just about the color? Lets get an unstylized version working before we fret over style.
The file attachment should be after the body text.
It should not say “send page” or “recipients”. Instead, how about “share this page with”?
Also, I think “Share page” should be “Create page”. The former implies that the page already exists.
I would like to make the case for groups once again: even with an install with only a few users, it makes a lot of sense to use groups. If you want something to got to everyone in the group, it is not a good idea to select all. Why? Because the people will likely change. Down the road, new people will be added, old people will be removed. You don’t want access in the long term tied exclusively to individuals.