A quick way to compare the new and old textures in detail.
I made this to encourage taking a closer look - the old textures have their flaws.
SMALL VERSION:  The original textures (1.13) and the 18w50a snapshot (V3.3).

The texture artist working on the New Default Pack: https://twitter.com/jasperboerstra
Disscussion in the Reddit post - made by u/qubeVids