The present study aimed to investigate the effects of adding sounds and projections of forest environment to the counseling room by measuring 1) impressions of the counseling room (experimental room), 2) impressions of the counselor (experimenter), and 3) collage works. In addition, the possibility of elements of the forest environment directly influencing the collage works used in counseling was examined. Four conditions crossing sounds (with or without) and projections (with or without) were tested. Fifteen university students were assigned to one of the conditions and individually created collage works and then completed a questionnaire. The result showed that there were no differences between conditions for impressions of counseling room, counselor, and collage evaluation by the participants. There was no difference in the use of natural materials for collages created, but animal materials were used more often when environmental sounds and projections were both present. The evaluation of collage works by 5 graduate students of clinical psychology who did not know the purpose of this study showed that the stability of the collage works was rated higher without environmental sound when projection was present. These findings suggest that the presence of both forest sounds and projections may have a psychological influence on participants (clients).