Please help identifying these problems (w / Pix)

[cosullivan]

Hi,

I need help in identifying what is wrong with some of my tomatoes - this is my first year of growing. I have 9 tomatoes, some are doing really well whilst others are struggling and they are all in the same raised garden bed.

This first (DSC01431.JPG) one was looking OK last week, its growth has been a bit stunted compared to the other ones, but it is a different variety (green zebra I think). It has two fruit which appear to still be ripening, but the plant looks dead? It does get direct sun all day and we have had a very wet start to our summer here (Australia) and the last few weeks the temperatures have been rising (around 30 Celsius or 80 Fahrenheit). Perth's average during summer is around 35C or 90F-100F.

The other images are from the leaves on different plants, not that on all of the plants, the top leaves are looking quite good, the bad leaves are at the bottom.

Thanks,
Cain