I am loving this Biker isabella oliver biker I also like this oasis one and if you can do red, this is lovely zara
Jeans, if you can afford seven for all mankind then go to a specialist jean shop and get trying on tonnes till you find the perfect pair....circa £200 but will last you forever and fit like a glove. If you are more high street, as I said I like GAP, but also Oasis Scarlet jeans are amazing for stretch and fit, here, and the new Levi ID crurce have had good reviews.
Day tops , I am loving all the silk T's and blouses at the moment, like this zara one in navy its never going to be silk for £30, but nice with jeans & flats. again red puff sleeve T, great colour with THE EBAY scarf too...
Liking this too from Great Plains cowl neck top and I also like plain tops with an edge, like this here and this is on my wish list..great with jeans in navy or the rose
In terms of flat boots I am loving the clarks riding boots atm, good value too, I've been wearing a Jones The Bootmaker pair like these dune ones. I personally would not do biker boots with a biker jacket, I think a biker jacket with elegant riding boots is a much more feminine style.
By a large purse, do you mean a large wallet like this one here, which I have or a large handbag?
Hope some of this has helped...