Comparison of galaxies scaling relations among different Local Universe clusters. Top-left panel: effective radius vs. r-band magnitude (M_r). Top-right panel: mean effective surface brightness (r-band) as a function of the absolute r-band magnitude. Bottom panel: Sérsic index n as a function of M_r. The red circles represents Hydra I dwarf galaxies from our sample. The open blue triangles are the Fornax dwarfs (Venhola et al. 2019). The open orange diamonds indicate Hydra I early-types galaxies by Misgeld et al. (2008), while the green crosses represents Centaurus cluster galaxies (Misgeld et al. 2009). Empty black plus are Virgo galaxies (NGVS sample Ferrarese et al. 2020); open purple squares are Coma galaxies (Alabi et al. 2020).