Yes, very nice, the demonstration.
But I think the green layer has been shifted a little too far to the left. You can see this, e.g., at the black jacket of the man 2 m to the right of the cross or the antenna. The legs of people and the cross are also a little too thin. In addition, my results (processed with RT->Defringe + FFMPEG->scale) have less noise in the sky as a side effect, but the Defringe could be a little stronger.
Below the TIFF files for download and screenshots from zoomed cutouts with a common image viewer.
raw480048_df_100.tif
raw480048_df_67.tif
rgb-compose-arber_RT (GIMP result)
A 2/3 reduction in resolution seems to be the limit.
It’s a pity, I would have thought I could reduce it by half without losing any detail.
raw480048_df_50.tif
