What are the characteristics of the high romantic?
I'm guessing that you are asking about literary Romanticism, such as Coleridge's. Some characteristics of Romanticism are:
a delight in the past/the Gothic/the medieval
orientalism/interest in the exotic
sentimentalism/enjoying emotion for its own sake
democracy/hostility to monarchial authority
belief in the purgative purpose of art (for the artist)
love of nature, especially the wild and picturesque
glorification of the commonplace
In part, Romanticism was a response to the Industrial Revolution's more mechanical, urban world. This new world created a hunger for intense personal emotion, fantasy, mystery and heroes.