Yoshitaka amano was heavily influenced by art nouveau. various artists such as Mucha, Klimt, Rackham, William Blake, Odilon Redon, Leonor Fini, Aubrey Beardsley etc. Combined with being influenced by his own countries ukiyo-e paintings resulted in his unique style. He happened to be in the right place at the right time, and open to the right influences that gave him that spark you seek. For automatic drawing, you drew faces, that was not the point as it lead to you judging them as poor symbol drawing, instead don't try to draw "something" and just draw lines, make marks, marks that are there just to be marks, thick, thin, dotted, swirly, harsh, smooth, bold, meek, loose, tight, flowing, abrubt. Don't force it, just play around, relax, listen to relaxing music perhaps, take some deep slow breaths.