Heightened painterly visual perception

2. T+01:00:00 [intensity]

intensity 

+ PLUS ONE — Clearly noticeable. You can tell when it began and how it's changing, though its full character isn't apparent yet.

3. T+00:00:00 [note]

Ordinary architecture took on intensified color and depth, with white ornaments standing out with strong decorative force and the walls carrying a medieval atmosphere. The subject, an artist, compared the state to first learning to see with a painter's eye and felt the drug chiefly energized fantasy, predicting it would astonish someone without artistic training more than a practiced artist.