Please, delete the space before the exclamation mark.

*backwards

Comma before "who".

No, sorry. Both "backward" and "backwards" are OK.

The space is perfectly valid as I mentioned in earlier posts.

it's standard punctuation http://books.google.fr/books?id...PA2&dq=dickens

Regarding punctuation, you still need a comma before "who".

There seems to be a space before the exclamation mark, too.

>Note that in English we don't put a space in front of the exclamation mark (!) at the end of a sentence.

Please define "we"...

Charles Dickens used it, as did authors of his time. That doesn't make it current standard. (I personally think in shorter time frames, so his English isn't 100% exactly the same as our English, even if they're both essentially Modern English, heck even my classmates' English and my teachers' English are pretty different)
Don't use that argument that they're the books our grandparents used, my grandparents barely even learned how to read, much less in English.

I don't think we need to prove any definite rule, which there seems to be not, to say you're not using standard punctuation. Therefore, I can't prove that you're wrong, and therefore can't find any grounds other than general consensus to edit your sentences. But don't claim your form is superior, or even equal.

please define "current standard". On which day of what year was it proclaimed ? And by which auhority ? And on what ground apart of space-stinginess ?
If the books of our grand-parents don't define our languages, what else does better ? Says who ?

Current standard:
Common practice, general consensus, what can be observed in most native speakers

Which day of what year:
Not declared

Authority:
No authority, just common practice, because English is cool like that :p

What ground:
It's what was already being done and no one seems to oppose it but a couple people in the world

What else does better:
Many people use major newspapers as a guide nowadays

Says who:
People that are really good at Engish