Thanks.
Yes the dandelion was a two shot merge; but a bit more 'skulduggery' was also involved. Where it was growing there was too much wind movement for a successful two shot attempt, so I picked the stem and moved it to a sheltered shady spot where I could stick it into a bit of mud and take my time over the focus.
Incidentally, with the first of my textures images I now see a rather odd looking ivy leaf at the bottom.
Not sure what happened to it but the lower lobes are missing.
I did take a bit of care over the background and removed a few odd bits but I never noticed that at the time. I did see the leaf there and thought it would be ideally placed but never actually noticed the oddity. However, I was kneeling in saturated mud so perhaps I was rushing things a little.