Art is a diverse range of human activities in creating visual, auditory or performing artifacts (artworks), expressing the author's imaginative or technical skill, intended to be appreciated for their beauty or emotional power.[1][2] In their most general form these activities include the production of works of art, the criticism of art, the study ...
Normally staking is done perpendicular to the wind, but in this case, place one stake in the direction that needs straightening. The second stake will stabilize the tree once you have corrected the leaning. Put the stakes in first, then have someone hold the tree upright while you fasten the rope/wire. If necessary, make sure that soil is replaced in staking and then water the tree.
Most trees we see that are leaning have limbs that are uneven or too many growing on one side of the tree. Over a period of years and abnormal growth, these trees can become top heavy and lean to one side. All it takes to make them lean more is some high winds or damp soil.