I simply covered the roller blind's plain white fabric in pretty fabric, sticking it down left, right and centre with double sided sticky tape - no sewing involved! And then flapping it to the back on the sides & repeating the stick down there!
I need to make a trip to the hardware store to get the necessary supplies to make a box pelmet to hide the roller at the top, but already it is greatly improved - in my opinion - and took all of 30 minutes to complete!
I am thinking of a black & cream stripe fabric over the pelmet - now I just need to find the fabric that is in my head!!