Now this is a proper mash-up collaboration, a conflation of two distinct styles from two outstanding artists, Benjimagnetic and Hemper. It is rare to find something of this nature where the artists fully collaborate so that the whole piece is one, and not two.
Although it is one combined piece, it is possible to disentangle which artist painted which bits. Broadly speaking the letters with straight bits and geometric elements are by Benjimagnetic, and the more curvy elements are likely to be by Hemper. It doesn’t really matter who painted what, because the end result is a wonderfully complex piece of writing that is jam-packed with great artistry.