You're welcome, Jennifer.
If you have Photoshop - the first thing to do is clone the layer so you don't mess up your original, then go to Image>Adjust>Hue/Saturation. Pick red, then play with the sliders until it looks good.
Then you can go into Image>Adjust>Variations and juice up midtones, lighten highlights, give the shadows a different color cast.
Try Image>Adjust>Levels to lighten midtones to see more information.
Then if you want to get really funky, posterize your image to see where your lights and darks are. Here's an 8 step posterization in greyscale.
You can see that your son's clothes are the highest key - bringing the focus right to him. I'd say this is a good starting point to think about a pose - maybe if you turn a bit to your right, so you can see his sleeping face. Also, lower the camera level more to eye level.
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