Seal script has a stronger sense of history, but it is not like official script if it is practical. For example, a big stone in our school is engraved with seal script, "Use it with courtesy, and harmony is precious", but no one around me knows it. ...
The style of The Bright Line at the Foot of My Bed has the style of Yan Ti (Yan Zhenqing).
I don't know what you want to do with it. Is it similar to that on the billboard?