Hi
Welcome to OSM
Could you provide a more descriptive changeset comment than "made changes"? Something like 'NCN 4 route amended due to...'
You've created a separate cycleway:
osm.org
/way/680909013
Is the route not shared path at this point?
It's created a gap in the route which requires fixing:
http://ra.osmsurround.org/analyzeMap?relationId=1318929
Is there a reason the route can't continue on the pavement to the West of Chelsea Bridge until it reaches one of the pedestrian crossings?

This section should be part of relation/1318928
You've added it to the super relation/1318931 which should only contain other relations.

What proof have you that there are toilets other than disabled at the locations you've amended?
You didn't conclude the discussion on this subject on Talk:GB.

Hi What were you attempt to achieve with this changeset?
This was removed:
way/600468563

Same Q as before.

Hi
What landuse is it? Yes isn't detailed enough.

What are these?
way/650647038

If there's no vehicle access, it's not a service road anymore.

Hi
Don't delete valid data.
node/6606087122

Hi Pretty sure they're not based on the platform. Where's the accurate position for them?

Hi
Tourist railway stations are not public_transport. Please don't click iD editor's validation/resolve button without comprehending the circumstances.

http://tools.geofabrik.de/osmi/?view=geometry&lon=-2.33890&lat=51.37624&zoom=9

Hi could you take another look at your multipolygon relation. It's far too complicated

.
relation/10409324

osm.wiki/Relation:multipolygon

Again, please don't change foot=designated to foot=yes on PROW footpaths. It reduces the quality of the OSM database.

way/168554853
This too large for a pitch (bordered with white lines). Please don't assume iD editor is factually correct.

Please don't change foot=designated to foot=yes. It reduces the quality of the OSM database.

Thanks for spotting that & letting me know.
Now deleted.

Please don't remove area tags from railway=platform mapped as polygons. They're a required tag.

Hi Neil
https://osmlab.github.io/osm-deep-history/#/way/4002666
Could you clarify the name of the tunnel structure?
Even if it has a name, the road's name should still be Hotwells.

I've fixed a few in the area, but may take a while to rerender