Here's a high-res png of the poster and here it is in a printer-friendly high-res pdf.
Note: The three objects on the top right corner of the poster are: a hypercube projected onto Hyperbolic 3-space representing the field of Topology (due to Henry Segerman, https://www.printables.com/model/167471-16-cell); a minimal gyroid surface representing Geometry and a Kummer surface representing Algebra (generated using self-written Mathematica code). All three have been edited in Blender.