Hi, It's very good, however; As soon as Lisa sees me wearing this expensive designer jumper she will not think I'm below her anymore. Since she got her promotion she has given me the cold shoulder. or As soon as Lisa sees me wearing this expensive designer jumper she will stop believing she is above me. Since her promotion she has me the cold shoulder. Both sound more natural. In English, we say people believe they are better or worse than others, but normally say they are above themselves or think others are below them. Hope this helps Jonathan

Yes, Eliza. I confirm you Liza tends to be real snob. The intent is depicts a competitive work environment based on people flaunting status symbols. I was ispired by a BBC's podcast.

It seems a bit confused. If I read the intent right, the best way to put the first phrase would be, "As soon as Lisa sees me wearing this expensive designer jumper, she'll think I'm as good as she is." (Lisa sounds like a bit of a snob doesn't she? And hopefully, the person buying that expensive designer jumper realizes that clothes don't make a bit of difference as to what someone is worth - if all they respect is clothes, you don't want them for a friend).) For the second phrase, "Since she received the promotion, she's given me the cold shoulder". (she looks down on me, thinks she's better than me)