Yeah, it's a medium that is not known for fine details given everyone's experience with it in school growing up, and the landscape/flower paintings that are common at art festivals; however, that does not mean that is all that can be done with the medium. Some artists pursue photo-realism [1].

Using something like a heavier weight (takes more layers), hot press (smoother grain) watercolor that makes it easier to add finer sharper, details. Additionally, there are mixing mediums [2] that allow changing application in different ways and there is masking fluid which helps preserve a sharp edge when working on multiple layers.

There is a variety of media that is "watercolor" as well: watercolor pencils, water soluble pastels, opaque watercolors, watercolor markers, and granulating watercolors.

1: https://doodlewash.com/guest-artist-photorealism-watercolors... 2: https://www.art-is-fun.com/watercolor-mediums

Yes, the point is that given any level of detail the water-color picture is a lot sharper than the Gaussian-blur equivalent, which is like putting a pane of frosted glass over the picture.

Maybe not, but if you were to compare a low-resolution scan and a high-resolution scan of the painting, you'd easily see the difference.