Overall, I thought this was a very good review of a brilliant game. I love Oblivion, and never get bored of reading about it, so this kept me entertained for a while.
There's just one thing that bothered me throughout the review (and I'm just nitpicking here): your use of commas seemed..........odd at times.
I don't know - maybe there's ways of using them that I was never told about, but as far as my knowledge goes, I don't think you're using them quite right.
For example:
I never finished the story mode for both the reason of the lack of motivation from the story and also the fact that I really didn't like going into the other dimension of Oblivion, it's boring and rather too red for my taste.
Maybe a semicolon or a dash might have served better? You do this quite a few times.
Or I could be wrong. That's always a possibility.
Otherwise, good work! =]