The official website of the Tsubasa & XXXHOLiC OADs added several screenshots from the second half of Tsubasa Shunraiki. Check them out here!

It looks a tad better than OAD 1, in my opinion, but not outstandingly better.
The OAD will be released on May 15 along with Tsubasa #27.
And thank you guys for always taking your time to let me know about these updates (clstmk-san, always alerting me about OAD updates ^^)