Very few artists have managed to accurately capture the /retro/ look, and that's because they try too hard.
It's always a small detail or two that stick out and scream "modern" at my face. Like I see a lot of images nowadays with a very heavy VHS effect applied, and fake scanlines with OSD on top, it's just not convincing at all.
Let's take the first pic for example; a VHS frame from an anime produced in the 80s or the 90s by the latest. I can see multiple issues here:
>resolution and quality
This is a 720p+ image with fine details. It should be 480p at most with muddied details. The second pic is slightly better in this regard.
The contrast between colors is too low and the whole image has a pastel overlay. If anything screams "2010s" it's pastel colors. When VHS washes out colors they do appear desaturated, but the differences between them are still obvious, like a painting with bright saturated colors that are clearly different, but having gathered some dust on top. See first pic related.
The VCR OSD looks extremely fake (i.e. play, vcr tape...etc) like you know this was lazily taped-on heh
with an editor. Normally OSD doesn't look pixelated, instead it gets blurred like literally everything else on tape and ends up with a smooth look. If you can see pixels on VHS you're doing it wrong, see second pic related.
Who puts OSD on a VHS frame anyway? When people started uploading digitized VHS frames to the internet in the 90s, none of them included OSD. What kind of rookie would include it?
Overall it would have been much easier, and much more convincing, to just take a regular picture with bright colors, record it on VHS, then digitize it back. Like what this guy did: https://www.youtube.com/watch?v=_oJs8-I9WtA
... The end result has a subtle, but very convincing VHS effect. And that's coming from an original footage that was shot at 4K! Keep it simple, stupid.
Also if you really want that "I took the tape out of the dog's mouth" effect, just record your tape on another tape, and see if the second tape has degraded enough for your tastes. If not, record that second tape on another
tape then check again. Here's a demonstration: https://www.youtube.com/watch?v=G8GOcB6H0uQ
Pretty cool. This guy is much more convincing because he uses a real VHS rather than a digital filter, but he fell into some pitfalls in regards to the 3D render. I'm not an expert by any means on 3D but I can pick up on a few errors, such as...
Notice how the head of the girl in the first vid is less complex than her hands? Now notice how the scene around her is even more complex? That's an inconsistency that sticks out. You either go low poly for everything equally without any textures or reflections, or you go high poly but keep the shapes basic without too much detail. Vid related is probably what 空想料理店 蟹 was trying to do; an early-mid 80s 3D render with low polygons all around.
In the 80s and even part of the 90s doing 30 FPS or higher in 3D was very expensive. Artists would stick to the "cinematic" 24 FPS if they could afford it, if not they would only go lower, again like in vid related.
I can't put my finger on this one, but almost every Blender render looks modern. I don't know if it's shaders or just the renderer itself but it always has that very unique Blender look that feels modern. I'm a firm believer that anyone who wants to make "old" content should only use the tools that were available at the time... Wanna make an old comic? Use real ink on paper rather than a drawing tablet. Wanna make 80s music? Use a real synthesizer/keyboard and record on tape rather than a DAW. Wanna create vintage CGI? Use the original 3D Studio or Infini-D rather than Blender.
Sorry for the wall of autism, I'll be posting some actual contributions shortly.