Hahaha good to know about the 50mm!
I have actually now just also bought a 35mm 1.8g ED - refurbished - for £200. Seems too good to be true, as the second cheapest I had found was on eBay at £299 - but will go to collect Saturday and see. So I would have got a 50mm 1.8g and the 35mm 1.8g ED for probably less than I would have bought the Nikon 24-70 2.8 for. All in all, camera (with 30K shutter clicks - button to open the built in flash doesn't work, but I never use it anyway - and can open by using auto if needs be), Tamron 24-70, Nikon 35mm and 50mm for under £800... Not bad.
Anyway, did a few more shots with "normal" ISO and yes, it's definitely sharper.
There's something not quite right in the flower one, whether it's the bokeh being a bit angular or just - as you said - the DoF being too narrow, but I can work on that. And yes, will definitely adjust the display, as I can see they are all slightly under-exposed - especially the cat one, indoor at 500 ISO 1/13 (hand-held but braced against the wall and sofa).