Comparison of the Lyα and He II emission line distribution with the HST continuum light. The QSO-subtracted WFC3 F125W image is shown in grey scale using a logarithmic scaling. The QSO-subtracted Lyα and He II centred narrow-band images obtained with MUSE are shown as red and blue contours in the upper and lower panel, respectively. Contour levels represent isophotes at Σ_Lyα = [1, 2, 4, 6, 8] × 10⁻¹⁷ erg s⁻¹ cm⁻² arcsec⁻² and Σ_He II = [0.4,0.6,0.8,1.0,1.2] × 10⁻¹⁷ erg s⁻¹ cm⁻² arcsec⁻², respectively. The Lyα extends slightly beyond the shown field at lower surface brightness levels. The MUSE maps were smoothed with a one-pixel-wide Gaussian to suppress noise, as presented in Paper I. The HST and MUSE images are empirically registered based on the accurate position of the bright QSO.