|This picture is not truly sharp but it looks good at this size.|
One attribute of many good pictures is sharpness. Back in the days of film, one way of eliminating negatives not worth printing was to examine one's negatives under a magnifying loupe. If the negative was out of focus it was out of the running.
Today, thanks to digital photography and the sharing of images digitally rather than as prints, the rules for what is sharp enough have slackened.
Be aware that when you sharpen an image in Photoshop, you do not truly sharpen the picture. You add edge contrast. It is a line effect. But, it does give the illusion of sharpness if the image does not demand too much sharpening enhancement or if the image is played small and displayed on a computer monitor.
Today's picture of my granddaughter is not dead on sharp. Subject movement, not enough to be artsy but enough to be annoying, mars the image. I gave it some sharpening in Photoshop and have played it relatively small on the computer monitor.
It looks good now, just don't look too closely.