Examples of SED fits of two optically thin (top row), two dusty (middle), and two peculiar (bottom row) RSGs. The orange diamonds show the observations, and the black line is the best-fit model consisting of the attenuated flux (dashed light blue), the scattered flux (dot-dashed grey) and dust emission (dotted brown). The green curve represents the Spitzer IRS spectrum. The coordinates of each source are shown in the top left corner.