Can you read description on the back? how old this thangka can be? what this represents?

[antiquesandartstore]

[sonomabarn67]

It does not look terribly old to me. JMHO

[argon38 · Accepted solution]

You might want to try here for a translation of the inscription, if nobody on this board is able to read it:

https://www.reddit.com/r/translator/