Drawn by 小平
Drawing seal of 小平
There is no "title" of the painting as such - the theme of the painting can only be inferred from the text, which as @sylvia points out literally says:
Painted at Shénnǚ peak of the Wū Gorge on the Year of Rénwǔ and month of 丙X....
If you wish to specifically mean the human "soul", in some religious, other worldly sense, you say 灵 魂.
Because 灵 means spirit also, and to just say 魂 means spirit lacks accuracy.
Between the two, 灵 has a much wider usage as it could also mean something non-other Worldly, or non-spiritual, such as 机灵, (smart), 灵活, (agile), whereas 魂 is confined to the non-...