This was an experiment in combining two treatments of a single face in one image, checkerboarded with each other. The main thing to take away here is the checkerboard effect, not all the many manipulations I did of the two versions of the face.
I started with this photo from Pixabay, a source of copyright-free images. I like his serious gaze.
In iColorama, I used Adjust/Tonelab preset 4 at medium opacity for clarity and depth. I used Style/Coherence and Style/Flow to smooth the face. I used Tone/Enhance to adjust the color. I brightened the eyes using an inverted brush mask and Adjust/Exposure and Adjust/Levels.
I opened the image in Trimaginator and created this. You can get something similar in Triangles in iColorama.
I opened the image in iColorama and added color in Tone/Enhance, Tone/Pastel (with contrast slider set to high), Channels, and EQ and EQ2.
I made this in iColorama using Effects/Pixels, starting with an earlier version of the man.
I modified the color and tone.
I created this pattern in Texture/Pattern in iColorama.
I blended the two images in Effects/Blend, using Lighten or Screen blending mode, and importing the black and white checkered image as a brush mask. I used the gray slider under Set.
With the brush mask still in place, I applied a Effect/Blur preset 11.
With the brush mask still in place, I modified the color and tone.
I inverted the brush mask and applied Raise 1.
Keeping the inverted brush mask in place, I applied Style/Flat 18. It looks bad now but we'll fix it later. I un-inverted the brush mask and applied the first preset under Texture/Paper at medium opacity.
I re-inverted the brush mask, and I applied Tone/Pastel preset 10 (for the blue color) and a preset in Tone/Tint.
I un-inverted the brush mask and altered the colors of the blurry man a bit.
With the brush mask still in place, I applied Effect/Raise preset 1 to the blurry man. Then I re-inverted the brush mask and applied a bit more Effect/Raise preset 1 to the blue bits. Then I removed the brush mask and applied Tone/Duotone in Overlay mode at low opacity to the entire image.
Here is another version after removing the mask and applying the first preset under Tone/Tint at full opacity in normal mode to the entire image.