Do you mean that Shadows are checked "off" in the Skylab? I believe the Skylab's shadow-tab (not the one for clouds) is a global shadow tab. What you need to do is turn the SUN off in the Skylab, but leave shadows checked on... It's a very dark image. I think it needs to be much brighter on the paper-areas (ends of hands, candlestick) and darker towards the edges, as you get further from the candle. You can achieve this with "squared falloff" in the candle-lights themselves. Note that you will have to turn their brightness value way up, and probably use multiple lights, like a ring of 6 or 8 radial lights around the candle-flame object. Make sure the candle-flame object has shadows turned off, too! Good luck, keep posting render of this scene, it's pretty cool!