The 0bama paintings both look like they’re paint by number, but well done paint by number.
The Obama “portrait” WAS pointed by numbers: The “artist” hires out all of his background painting to people in China who repeat the same patterns all the way across the painting, but he does not go to China, review their work, nor supervise it. It is no more art than wallpaper - even and I have seen wallpaper more well-presented.
Look at the groups of leaves to see the four repeated patterns: Only the flowered parts change. (There are four sets that are repeated.) None have any lighting or shading, any perspective.
His other well-known "paintings" are copies of Renaissance masters' work, redone over wallpaper patterns again, that replace the central figure with a black woman holding the severed heads of white women. In those, the wallpaper pattern is less obnoxious (less overwhelming) than the 3-pointed (sumac ?) leaves and ivy leaves used behind Obama's wooden throne.