Mars square Neptune (orb 3.7°) creates concrete friction between the two planets. The orb is moderate; it stays secondary beside tighter signatures.
Here, Mars in Leo in House 12 brings action, courage, competition, and effort into House 12 (retreat, contemplation, long time, and possible confinement), with Leo style (presence, pride, creation, and the wish to be seen); Neptune in Taurus in House 10 brings imagination, image, popularity, collective moods, and inspiration into House 10 (vocation, status, responsibility, and public image), with Taurus style (nature, good food, physical sensuality, roots, resources, and perseverance).
Concrete friction: this aspect creates tension between action, the wish to act, image, vagueness, ideal, and scattered energy. Visible angle: Neptune near the Midheaven (orb 5.8°) touches an angle; this aspect is easier to notice through social role, reputation, career, and public image. House 12 (retreat, contemplation, long time, and possible confinement) is in friction with House 10 (vocation, status, responsibility, and public image); this can create blockage, inhibition, overreaction, or repeated conflict between the two fields.