The image that made the page slow
A single hero photograph is usually the whole performance problem, and usually for one of four reasons.
Nature Images journal
Notes on nature images
Field notes, licensing explainers and picture-editing practice from Nature Images. Written to be read, not to be counted.
Why your greens look flat
Foliage occupies a narrow hue band, and the obvious adjustment is the one that destroys it.
Naming files so you can find them in two years
The identifier that survives is the one nobody chose. A short argument for putting the asset id in the filename.
sRGB is not the limitation people think it is
Wider gamuts look better in an editor and worse everywhere else. When that trade is worth making, and when it is not.