The text is also just a CGI splat, added in the Editor like the others (I made 3D text in Blender, created COLMAP views with https://viewer.needle.tools, and ran it through Postshot)

I actually think depending on viewing distance the 50k version looks better! The 500k version would have probably needed more camera poses and/or more training iterations (they were all trained with ~30k iterations only). I did not measure PSNR etc yet, are there tools to do that automatically over all views?

So 500k is the best splats based on this dataset. BTW, How to add the text "1k 5k 50k 500k" ? Did you measure the metrics such as PSNR, SSIM, LPIPS?