We demonstrated FRAME, a novel method for locking non-equilibrium colloidal self-assembly via fast photopolymerization. The rate of photopolymerization and the small mesh size ensured that the structure stayed intact as validated by comparing different image modality (optical microscopy, SEM) at different stage of the workflow. By enabling high resolution characterization, our FRAME provides crucial feedback for controlling structural arrangements and rationally designing materials for specific applications. This was demonstrated by forming non-equilibrium optical matter assembly using different beam waist which resulted in different crystalline structures ranging from concentric circle to hexagonal packing. Finally, for the first time we were able to observe the detailed structure of OM structure formed by particles smaller than the diffraction limit demonstrating that their high entropy and weakened light matter interaction made them to form a crystalline structure. FRAME enabled crucial insight that would not have been possible by studying these assemblies on their dynamic form. We are convinced that Frame will pave the way for understanding non-equilibrium assembling and enabling their rational design for desired applications.