For the benefit of others, I'll share how I got this image from SkyCompass:

1. First you need to grab the character OR skin's ID (the GBF Wiki has them).

2. Then you plug that ID into this URL:

• https://media.skycompass.io/assets/customizes/characters/1138x1138/[ID]_[##].png
• Where [ID] is the ID and [##] is one of the following: 01, 02, 03, 81, 82, 91.
• The numbers depend on which art you're looking for (regular, uncap, FLB, Ex pose, etc.)

So, to get this particular image, the URL is:
https://media.skycompass.io/assets/customizes/characters/1138x1138/3710174000_01.png
(Since it's a skin, you need to use 01.)

Edit: I forgot to mention, credit goes to this fella on Reddit.