Very difficult to offer constructive C&C on these Smeggy.
They are stunning, particularly like Nos 6,7,16 and 18.
The girl in No10 is not only gorgeous, you have caught her brilliantly.

Davex.

As rare as hens teeth, when they do come up expect to pay at least £900. But also expect to wait a long time.

A lot of very satisfied users on this forum, including me. Beware the AF is a bit slow and can hunt at 500mm.

You hav`nt mentioned the DA 55-300? for the price a very wothwhile piece of kit, again however the focus can be slow.

If you must have 500mm then the siggy 150-500 is probably the best option in your list. However am sure that Mike-P will be along soon, the king of long range lenses, I think he has owned them all at some point. I would seek out his advice.

Davex.

Have just voted Sunday, but more than happy to do Saturday.

Davex.

Cannot think of a specific example

Glad you enjoyed Chester.
Maybe next time conditions will be kinder.

These look a tad over sharpened to me ?
The courgette as you say is too complicated.
Like the colour , form, and composition of the lavender.
Also like the border you have applied.
Good first effort.

Now on ebay.
LINK.

Davex.

Hmmmm John,
Looks like a pose Timbo would use.
Not sure about the oil drums though.

Davex.

Payment received.
The first lump into my K5 fund has now landed

Davex.

Possibly.

Lens now sold, subject to payment.

Davex.