No, it looks different to both of those. But don't worry. Now I've seen where the clips are I've managed to get the right trim tool in and work the clips out of the lower trim. With out removing any of the seat belt attachments or the coat hook I've just got enough room to get my fingers behind it which is hopefully enough for what I need to do. Started pouring down with rain and gone dark, so have left the lower clips out and will have another look tomorrow.
You might wonder what I am doing.......I have a double USB charger mounted in the lower B pillar trim which has stopped working so suspected either the unit was faulty or wire has come off it. Sure enough I can now see in enough to see that one of the wires has broken off the spade connector on the back of the USB unit. Hopefully now I can get my fingers in enough to unscrew the retaining ring on the back and which will allow me to bring the USB unit out and repair the broken wire to it.
Thanks for your help.