Anything associated with beech trees holds a lot of appeal for me. Everything, their overall shape, the branches, the leaves, the bark, the buds in spring, the fruit, etc. etc. Something about growing up in England, I think. So several times a year I drop by the park in a neighboring town that has three magnificent beech trees.
Also my "underfoot" series remains, in part, an excuse a place to post pictures, like this, that capture contrasting textures, which also fascinate me.