You can't really see anything and it is mostly the white plastics of the stem and like 3 small holes, one that you can just able see a cable. So want to get it covered for that reason, especially with living in the UK and it would not like our rain ?
Funny that my visit to England was totally free from any rain. It was a pleasant visit. Warm, one day rather very warm, but so much different than I was expecting. (I live in an area that gets less sunshine than you in the UK (supposedly))
There are tradeoffs for every place I've ever visited. I loved London. (But we were there during your 'holiday', and on the last day, the population starting returning and it was a tsunami cresting out of the bowels of the tube-way) But still a great city, a great nation. I wish I could have seen more of it.