Quick and subtle post processing
Creating multiple exposures in-camera doesn’t mean that these images don’t need any post processing at all.
How much post processing you do on your flower images? When using the proper camera techniques, they will only need minor post processing. Most work will be done in-camera. Back in the days when shooting film, I used to print black and white images in the dark room. In it you had more control over the process than most people might think. And actually it is these techniques that I still use in Lightroom. Adding contrast, brighten or darken certain areas of the image is mostly all these images need. The only extra I do now is correcting colors.
Below you can see a small video example of a quick post processing of some of my multiple exposure images.