Projected hexabin distribution of a representative halo at z = 0.5 in the three simulation models: CDM (left), NB (middle), and FCT (right). Each panel shows a single projection. The top row displays the host halo particles, while the bottom row includes both host and subhalo particles. The inclusion of substructure is visibly more pronounced in the FCT model, highlighting the effect of PBHs on the spatial distribution of matter within haloes.