Since the silent hotfix on January 20th the shield textures seem to be a lot grittier. I do not know, whether this is intended or a bug (although if it is intended there are some hard edges on some textures, akin to a cut of texture).
The screenshot is from a tourney, although all shields are more grittier.
Computer Specs:
OS: Win 10
GPU: GTX 1060
GPU Driver Version: 526.47
CPU: i5 6600
RAM: 16 GB
Motherboard: Asrock H170 Pro4S
Storage Device (HDD/SSD): SSD

The screenshot is from a tourney, although all shields are more grittier.
Computer Specs:
OS: Win 10
GPU: GTX 1060
GPU Driver Version: 526.47
CPU: i5 6600
RAM: 16 GB
Motherboard: Asrock H170 Pro4S
Storage Device (HDD/SSD): SSD