Comparing the median values of posterior distributions of selected parameters from retrievals performed on the four different spectra. Arrows indicate upper or lower limits. For each spectrum, a suite of four retrievals with different complexity of the temperature-pressure profile is performed. Isothermal profiles are denoted by “isoT”, while “FP” means that the temperature-pressure profile is parameterised by F fitting/free parameters. Separate suites of retrievals for grey versus non-grey cloud models are performed. Within each suite, filled circles are models where the logarithm of the Bayes factor is less than unity, implying that all of these models explain the data equally well. Within this subset of models indicated by filled circles, we choose the temperature-pressure profile that uses the least number of parameters in our subsequent explorations.