Here's my offering, processed in Snapseed, Photoshop Express and powered by Android! It's the first time I've tried out a K1 file in my 'mobile workflow'..... Thanks Gareth for the chance to try things out on such a gorgeous capture...

No 1 has some fabulous tones and shades, like some crazy pinball machine. An amazing work of art captured nicely. No 4 also has some lovely woody colours.

I think your images would benefit generally from some further sharpening on the versions used for Web display.

Heres another one from a while back, but freshly processed from the Pentax DNG using the PhotoShop Express and Snapseed apps on Android.

K7 and Tamron 70-300 mm, f8 / ISO 200

Thanks for the extra comments all, and Peter for the alternative version. Sorry I dissappeard again! I'm glad that the final verdict on this was that it wasn't too dark after all. And yes Gareth, it took great bravery to 'go there'

Great catchlights! They could be used for a text book example.

I love No 2 in particular, it's got a perfect horizon line to highlight the sky and you got that patch of light in the background just at the right time.

The place reminds me a bit of the walk down to Lulworth village from the ridge.

The pink in No3 is so delicate, and I like the layout of No8.

Beautiful flowers beautifully taken! The coloured backgrounds are very original also.

Great effects and the red is so striking! I love the timing of the first one to get the church in on the left, balancing the road.

Since the assumption is being made (reasonably I think given your own comments) that your most needed focal lengths are within the "standard zoom" to wide angle range, then yes, the 16-85 seems to be the obvious choice for a new toy.

You haven't mentioned any specific subject interest like portraits, or wildlife, and you already have a very good Macro lens. On aps-c I think 16-85 really covers, what, about 80% of all general ,photography situations, and you have a few more specialised options for when you go to certain places, eg the macro for gardens, the 10-20 for architecture and the 55-300 for some wildlife or long zoom landscapes out in the hills.

My approach would to only take two lenses out each time - the 16-85 and one other, depending on where you're going....... (Good advice Nigel, now go and put it into practice yourself!!!)