You won’t be able to use the three-exposure technique (which only describes the barest minimum of HDR image-making ingredients, btw) to create this because it is not anywhere close to actual HDR imagery. It’s a heavily-applied filter with a misleading name.
My approach would be to use brightness and contrast to create a channel that is reduced to nearly posterized values, then experiment with Color nodes in various ways (Add, Subtract, Multiply, Exclusion, Difference, etc.) to recombine this with the original image. You can generate various masks with the images as well, which may help achieve the final. But it’s not something that will be done with a simple recombination of a few processed images.
To give you an idea of how complex node-work can get for special visual effects, take a look at the second part of my Kata video (link in my sig, still frame attached), where the dancer takes on her glowing spirit-form. The look of that figure, plus that of the shadow-dancer creatures she fights, took over 100 nodes operating simultaneously, distributed between various render layers, filters, masks, color processing noes, and final compositing nodes. Your project probably won’t be that complicated, but it does show that complex effects require complex node design.