They'll never look exactly like the long exposure, ultra vibrant photos. However, when they are really strong you can see both greens and purples very distinctly with the naked eye.
One experience you can get in person when they're really strong is how fast they can dance around above you as well. I've found the dancing lights to the naked eye are much more astounding than in timelapses or videos, 1) because that's when they're most vibrant in person, and 2) because you can see just how fast and jittery and energetic they are, unlike in a video which is usually captured at much less than 30fps for low light and denoised and frames mashed together to create those soupy smooth videos and timelapses. Nice in their own way, but nowhere near the same experience.
And when they're very low energy they will just look like green grey clouds to the naked eye.
The readme of their repositories each have tables that detail the quality of each file. The QK_4_M and QK_5_M seem to be the two main recommended ones for low quality loss while too being too large.
Only need 1 of the files, but recommend checking out the GGUF version of the model (just replace GGML in the URL) instead of GGML. Llama.cpp no longer supports GGML, and not sure if TheBloke still uploads new GGML versions of models.
Have the same last name, just pronounced "good enough" as it looks. Have met a few other unrelated families from different countries with the same last name and never heard it pronounced differently either - perhaps historically though.