In my opinion, of course. Yours may differ and that's fine.
I opened up Skyrim today. I started to run around (though at speedmult 500) and I never really thought about how beautiful the landscape is. I have but a few mods to enhance the graphics, like WATER, Better Dynamic Snow and HQ snow, Lush Grass plus some other minor ones but that's that when it comes to the "looks". I really don't think more needs to be enhanced. Not even the texture size. I'm fine with the default texture size (unless of course some are replaced by the mods I use) and I don't even use the 2K ones or custom ones. I stopped using SMIM because it was too resource hungry and I didn't really notice the changes it made (I'm not detail OCD).