cross shape crown crown of thorns Easter peace thorn euphorbia milii flower leaf petal plant shrub spiny succulent thorns woody backdrop background blood christian collage cross faith nail nails paper spatter spill splat splatter stain stained texture belief blood-red christianity cloth crucifixion Good Friday hope material pain painful platted red red cloth religious scarlet sharp spikes symbol symbolic symbols thorny twisted wood wood grain black black cloth wooden bloood christ icon jesus religion tattered torn worn aged bible book grunge grungy holy leather vintage