Great work everybody!
eduroam - Your artificial light image is really terrific! I think a few places, such as the top of the right sofa, could use a little more fill light, just so the shadows don’t go black. Some bounce from the blue carpets onto the furnature would help too. The TV screens could use a little more glare, just some gradients or highlights or reflections on some of the screens, just so you don’t get a situation as happens on screen-left where a screen looks so similar to the front of a carboard box. You could use a hint of blue fill light from the lit walls onto the tops and bottoms of the edges around them, and perhaps onto the TV tables and shelves in front of the blue walls as well; those shelf-tops are looking a little dark.
For the “natural” light, maybe the reason it doesn’t look natural is because it’s all one color? The light and reflections from a window might contain a sunbeam when the sun is low in the sky, but it would certainly also contain some soft blue fill light coming from the other angles around the sun. Work on how the hard, bright, warm sunlight mixes with the softer, dimmer, cooler sky fill in the light on the floor and the reflections of the floor/window area. Take a look at pictures of rising/setting suns and the surrounding sky colors you can get for reference. You might make the shape of the shadows more interesting as well (doorframe, window posters, etc.)
Voigg - That’s nice. In the center foreground the warped counter looks very low-polygon, if you want to add cracks or something try texturing it or at least subdividing what you want to break-up. The foreground area with the bags seems like it need shadows or occlusion, so there’s real darkness where the bag touches the floor, etc. Having lights coming so evenly from three directions (back right, screen-left, behind camera to right) creates an evenness that works against the dark, shadowing, contrasty tone of the scene, if you could simplify a bit, and maybe choose just one or two of those directions to really play-up convincingly, you could create a stronger image.
Vesty - Nice scene. I think you have lots of little lights that don’t all cast shadows, and that’s adding up to a glowy quality in important areas like the left character’s head. The DOF looks kindof fake, you might do without it and define the depth more with lighting – maybe that door behind the clerk could be much darker, only accented with a specular hit from the side, instead of unifom diffuse?
threedwizard - Good start. Even in a white, reflective room it’s possible to take control of your lighting and shadows, and make the light look as if it comes from a limited number of places.
CGMagicman - Work on the floor shadows/reflections more, especially where the edge of the counter meets the floor.
sunhe - That’s great! Birlliant work! In the upper right, those boxes don’t look like they’ve been textured or lit yet, and are floating in space. The bright glow around the TV image seems fake, and maybe you could find another image that looks more like cash register screen? In the foreground, the money looks more thick, like picture postcards, because it needs some bounce light or some translucency to look like thin paper. The counter-top and reflections look great! I like the poses and composition of the characters. On the ceiling, it seems as if you have one flourescent light fixture, but then on the left some glows from other light fixtures where there’s no light behind the glow? I think the lights above the emergency exit could be turned off, or white/yellow, but those kinds of spotlights aren’t usually red like the exit sign itself.