Suz, I add my compliments to every one else's here. You made a real deal! This looks great on you (my, not just great: splendid), especially the Mandarin collar, it suits you beautifully across the shoulders and at the waist. It looks stunning with the matching bottom colour. For this, I would really try to arrange the pants, even if it is a bit more costly than a regular alteration. Because it's not just the pants, but the added value from the pants with the Mandarin top, and that outfit in itself is outstanding, unique, and fits you so well.
I was thinking: how about adding ankle slits as you narrow the legs and take in the seat?
Or: go for the wider leg look. Nothing but a slight rise of the leg hem. So to make it less tapered, more oriental looking. Perfect with platforms. However with this option, although I think it would look great with the Mandarin top alone, I suspect it wouldn't be the best with the jacket, given the jacket's shape and, most important, the jacket's length.
Nevertheless, you could wear it together with the top and another topper, such as a long trendy cardi (I'm thinking one of those round hem ones, long enough in the back to cover the behind, like this one http://www.etsy.com/listing/58.....t-cardigan)
In any case you have many options in front of you. Can't wait for more pics!