Over sharpened and a tad over exposed

Both will give you significantly sharper images, I went from the K-7, which has the same sensor as the K20 to the 5iis and was stunned by the improvement and I have since upgraded to the K-3. Personally I would choose the K-3 because of the additional speed and functionality, although, apparently, there is a tiny difference in the low light capability. If you do not shoot a huge amount in the dark then the daytime shooting is better than the 5iis simply because of the greater number of pixels.

I want to switch on Catch in Focus at any time and with any lens

PM me with details Dan

Yup deffo crows, the rook has what looks like a dirty white beak.

Take the highlights down a peg or two and up the contrast and the B&W will work much better. It looks like you have the fabled moire too

Number 3 is the money shot, well done

It's a great lens isn't it

Over sharpened and sadly produced a halo as a result

PM sent