The phrase "dramatically beautiful" is correct and usable in written English.
You could use it to describe something that is very visually appealing in a striking or intense way. For example, you might say, "The mountain range at sunrise was dramatically beautiful."
The climate and environment, though dramatically beautiful, are rarely calm.
Samara, in the dramatically beautiful Camdeboo national park, is famous for its vistas.
The place sat in dramatically beautiful surroundings right beside the forest.
But some worry that rapid energy development into increasingly remote areas will ruin Colorado's dramatically beautiful mountain landscape.
In reality, he is far from ugly – without the make-up, there's something dramatically beautiful about his eyes.
The dramatically beautiful island of Evia, with green mountains rising up from the coastline, is so close to central Greece that it's often assumed to be a peninsula.
Lisette Oropesa, Jennifer Johnson, and Tamara Mumford made beautiful and dramatically pointed sounds as the Rhinemaidens.
In many scenes Mr. Maw's music is hauntingly beautiful and dramatically apt.
The audience sat in rapt attention for two and a half uninterrupted hours (Wagner fans are the best behaved) through a dramatically taut and spaciously beautiful performance.
The flying stuff, particularly a final act dedicated to the doomed final leg of Earhart's attempt to circumnavigate the globe, is pretty much everything I could ask for -- accomplished with a mix of live action aeronautics and CG simulation; and both visually beautiful and dramatically riveting.
As august a modern critic as Charles Rosen once wrote that while the music of "La Clemenza di Tito," which opens in an excitingly cast revival at the Metropolitan Opera on Friday evening, is "never less than beautiful," it fails dramatically.
