I'll use a concrete example. The arrangement of these items look perfect to me:
I think they look good to me because they are almost perfectly aligned and the distance between each item is similar.
This is a modified version of the same items:
They are shaped as a heart.
For a design point of view, are both versions equally well-arranged? If not, what are the factors that are making the second one look less well-designed? (e.g. symmetry, distance, size.)