Headshot from my summer shoot with Emma J Black, manually composited with a series of shots from Venice.
The main background image is one I've posted here before - Fino A Domani.
The technique is one I learned from Phlearn on YouTube. Aaron Nace and the team do amazing work, and have an incredible series of fun, charismatic, massively informative videos sketching how it's done. One of the best photography resources out there, and well worth checking out if you haven't used then before.