ohh ok, I don't know what Serif is or even how it works.
They're great shots you've got straight from the camera. That's one of the bitches of digital photography - all the post work that needs to be done to make the photos look great/good.
If you are going to have a play around though in your photo editing software, you could increase the shadows a bit, and that would get rid of some of the red haze in the last photo you've posted.
Your first one is my favourite, just coz of all of the different colours in there.