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So, it seems that the Humans are really struggling with finding interesting content, lol.
I wonder what program the artist is using to draw. Photoshop, I guess?
The lighting effect turned out great; I need to experiment with blending modes. I'm currently struggling to create good glows, but this seems to be done in a single layer and looks bright. Although, it might also depend on the color...
The reflections on the hand are terrible. Just go over the outline with blue, and it will already look better; that's the basics. The hand itself isn't very good; fingers have two joints, but here there's only one.
And in general, did it seem to me, or is the artist smudging with their finger in some places? Using a finger was already considered a faux pas back in the late 2000s; you need to be extremely careful with this tool. Nowadays, there are many great programs with great brushes that look much more beautiful and natural, even with low skill. For example, I like the default oil brush in Clip Studio; it applies and mixes colors very nicely.
Also, I didn't particularly like how it was edited. I would have shown everything from the very beginning, from the construction and sketch, and the detailing could be shortened. 80% of the drawing is done in 20% of the time, and obsessing over details doesn't look as impressive in a time-lapse.