The long trim across the top is removed by sliding the whole panel UPWARD, the outer two clips are located in 'keyhole slot', I can't comment on the centre lip [as mine was broken], but I suspect it pops forward rather than sliding upwards. The infill panels behind the seats [3 and 14] pop forward, each with 4 clips, once removed their orientation when replaced is printed on the back of the panels.
So simple even a man can do it !