Thanks Roy, this shot was taken with a unmodified camera which can only manage IR with 720nm & longer filters (or the visual portion completely obscures any IR) so has limited options for false colour.
After my initial experiments with the K100d, I tried a cheap Sony DSC V1 which gave IR in nightshot mode (provided the filter adapter wasn't screwed in all the way)
nightshot ir DSC00575a by Mike Kanssen, on Flickr
The limitations of that soon persuaded me to splash out on a pre-converted Panasonic GF2 that was reasonably cheap on e-bay due to cosmetic damage.
I've used it in both monochrome & false colour images
Dereham from the windmill by Mike Kanssen, on Flickr
Despite the lack of a built in viewfinder That camera fed my IR bug for over 5 years, and it still gets outing occasionally when my converted A7ii is too bulky/heavy.
The added weight of FF has meant I've not always had IR filters with me when IR subjects pop up. Fortunately it seems a variable ND at it's darkest setting makes a reasonable substitute for a 850nm filter:
PK 28mm vari ND by Mike Kanssen, on Flickr
I find it's not just in infra red that B&W can have an extra impact, but as yet I've not really made enough of the option of converting to monochrome. Even shooting predominately in JPEG I prefer to shoot in a colour mode & convert to B&W afterwards. Like false colour IR it just increases the options to emphasize the parts that caught your eye.