thanks for trying to take useful photos…
because the blue can looks different in every shot, it tells me the WB is different in every shot. But that said, I like the SST “best”.
I also like the 2700k LH351d, but, I almost never use such a warm light, unless I am waking up in the dark… I would never use it during daylight adaptation, not even under incandescent…
There are two ways to fix white balance differences…
1. if taking separate photos, dont use AWB, set to a consistent 5000k WB, or daylight white if the camera does not specify…
2. If you dont have manual white balance, then all lights should shoot separate cans but all in the same photo, lined up side by side… just the can with the fruit colors… leave the blue can out of the photo completely (and dont overlap the spill of each light)
opinion:
The colorful can is not ideal because it is not natural, organic, red pigment… would be better to line up some tomatoes, or strawberries, not oranges, they are not red enough… but a lineup of red objects might not work… to show the difference in a photo, that may be more obvious to your eyes
bottom line is that it is very difficult to photograph to reveal CRI… I trust your eyes and personal impressions, more than photos. I also rely on maukkas spectrum charts, to show the actual R9 value, those tell me the SST has the best R9, much better than LH351
one of the easiest CRI tests I have, is the palm of my hand…
in any case, congrats your your selection of test LEDs… hope you find the ones that work best for you