Jeff,
Sit down. Honesty time. The camera will never yield good shots for model purposes. It simply is not design for it. The specs of the camera that lead me to this conclusion becuase of the following:
F-stop fixed at f2.8 - this will result in a very, very short depth of field, espcially for objects close the the lens. This means that your focus will need to be spot on the subject. This is why in your pictures there is a large amount of perspective with very little of it being in focus. Also, you have no ability to adjust the f-stop setting.
Shutter speed is limited to 1/60 - 1/1500 sec. For interior photography you need either a lot of artificial light or a tripod to hold the camera. On most SLRs the flash synced shutter speed is 1/60 sec. This camera is at the bottom of the rande for slow shutter speed. Many of my pics posted this weekend were in the 4-6 sec exposure range for dark scenes and 1.5" for average lighting from the room. About the slowest a persona can hold a camera still for is a 1/30 shutter speed, maybe 1/15 if you're leaning against something.
While you're using flourescent lights, they don't provide enough light, for this camera, by the time it reaches the subject. Light follows an inverse quare law, that means the when you move the light source from 1' away to 2' away from the subject the amount of light falling on the subject is reduced by 1/4 not 1/2. Therefore you need not twince the light but four times to light for it to be equal.
Exposure setting is auto and can not be adjusted. This means that since the f-stop is fixed the only way the camera can get the right exposure is to adjust its shutter speed automatically. Because of this all of your pics with have the same basic exposure or at least be underexposed due to a lack of light.
White Balance is auto which is also bad. You flourescent lights output of light is at a certain temperature. While you may not notice the difference, a camera will. I took a series of pictures using a simply desk light as the light source. In one set I used a regular incandescent bulb (60watt) and the other set I used Daylight adjust compact floursecent bulb. The camera was set on auto white balance. There is a marked difference in the overall color shift between the two bulbs.
Bottom line is that this camera is meant for outdoor use. I can't see in the specs of the camera itself where it even has a flash built in. You will never get satisfactory results when used for close-up photography. Save it for railfanning or overall layout shots.
After checking a few internet sites you can get a decent digital camera that should provide good pics for around $75-100. These are cameras with a macro setting, automatic and manual exposure settings, anywhere from 3-6 megapixels, good f-stop range and a focus range down to as close as 4". While I know you have limited resources, the cost of one of these cameras is in the range of a new loco such as a Bachmann DCC equipped one. IMO a good trade off given your desire to post pics. One less loco for hundreds of better quality photos.