those are pretty good, except the portraits. if you spend a little more time on the portraits with shading and detail, you will master them. 
i like the firs tone the most. 9/10
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If you stare at a white pixel long enough, you notice the throbbing red, green, and blue elements that create it.
If you stare at a fuzzy blanket long enough with your eye so close it goes out of focus, just look at the sparkles; you can see it on the cellular level.
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Linear Mode
