Two Challenges in One #AT15 and ThrowbackT

I'm a little confused but not to worry .This collage is for Throw Back Thursday (I see this is still a challenge with  some) Also Abstract Thursday 15.Technically both images are throwback displayed in abstract form .If anyone wanted to say which is which I  would say the Right image for sure is throwback . The amount of post processing is minimal. Boost and play with colours . I just  enjoyed both .The left image was very near to where I live.The right hand image was down Oxford Road .This week  will put my answer at midnight CET  or if someone guesses....