[pspzockerscene]

LinkCrawler Rules are nothing you need to have programmer skills for.
You're free to try it and ask for help if you're unable to make it work.

-psp-
EDIT

Here is a very very basic LinkCrawler Rule for the website you've requested:

[ {
  "enabled" : true,
  "logging" : false,
  "maxDecryptDepth" : 1,
  "name" : "weasyl.com single images example rule",
  "pattern" : "https?://(?:www\\.)?weasyl\\.com/.+",
  "rule" : "DEEPDECRYPT",
  "packageNamePattern" : "<title>([^<>\"]+)</title>",
  "deepPattern" : "property=\"og:image\" content=\"(https?://[^\"]+)\""
} ]

Rule as plaintext:
pastebin.com/YjUZmaCq

-psp-