But there things that aren't so obvious to fix... Someone with access to raws, please check [my assumptions]:
Guiche who did not dare [to look] at Wardes directly
Even in hand to hand combat with Wardes with[out] the use of magic
I don't [think] that I can compare with him in any aspect
Another world different from Halkeginia really does exists...
(without 'does' - I found no strikethrough font support here

The man in the white mask gave a once over at the mercenaries that Fouquet had hired
('gave a glance'? Or is it okay as it is? I have no idea since English is foreign language for me)
she did not really know weather if she still has any feelings for him
(whether? still had?)
Meanwhile, Saito realizing that Louise was looking at himself
(Loise is a 'she', so she can't look at 'himself', am I right? If so, then script should read 'him' instead of 'himself'.)
The burning torches illuminated the ravine that they were about to cross
(I don't think 'that' is necessary here).
The burning torches had frightened the horses and thew Saito and Guiche off its backs
('thew' = 'they threw'; shouldn't 'its' be 'their' in this case? Moreover, 'The horses, frightened by ..., threw ...' sounds better to me.)
Just as they thought they [were] about to meet their doom
That same hurricane caught all the arrows and sent it away
(either 'sent them' or 'went' instead of 'sent it', but not as it is now)
Though I'm sure I didn't make any my own mistakes here, this doesn't mean it's really true... So I'll be glad if someone speaking English natively tells me I'm right or fixes my mistakes, if any.