Tower of London

I painted in some of the trees etc then hated it, so I literally washed it off again, scrubbing with running water and a nail brush. Interestingly the cadmium yellow has stained the paper the most, then the payne’s grey at the bottom but the viridian and yellow ochre are quite faint.
Wondering exactly what to do next, I must darken the foreground and somehow remove or disguise a man by a tree who looks very strange!