Can be cut back hard in winter when its dormant - but this sometimes increases the number of suckers off the roots hugely. If you just want to expose the red cones more, clip off anything blocking the view of them, but don't take too much, best done late August.

Thanks for taking the time to respond.
When you say winter are we taking mid to late November? And can i cut it back to the main stems?

Late November, December I mean. I wouldn't cut it back that far - these trees are known for producing suckers anyway, and cutting back to nothing but the main stems may well encourage prolific suckering, but obviously, I haven't seen the tree and therefore can't make a proper judgement about it.

thank you