Joan, I think the example of your daughter is lighted just about perfectly. You would rarely want any greater degree of contrast between lit and unlit areas, anyway. Much more contrast than this and your camera couldn't handle it anyway. You'd end up with blasted out white light areas and deep impenetrable darks. Not good to paint from.
The shots that turn out red are probably, as was suggested, problems with your white balance setting on your camera. It is probably set by default to match the window light that you had on your daughter and your Mom's friend, since the color on those is great.
When we shoot by artificial light we run into lots of different colors of lighting. The reddest ones look like they are lit by incandescent light(regular houshold bulbs) but that your camera's white balance is still set for natural daylight. Check out that feature and be sure it's set to match whatever the main light source is.
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