A 320x256 bootpic called 'Sensible'.

NO "Workbench XX.YY" text, which would probably be different than your setup.
NO crap Windoze joke (like 'Windoze loading.  Come back tomorrow').
NO Amiga logo.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  491    2584  19.0% -lh5- 93f5 Feb 27  1996 Sensible.info
[generic]                  477     795  60.0% -lh5- 98d5 Feb 27  1996 Sensible/Readme
[generic]                  474    2874  16.5% -lh5- d42c Jan  1  1996 Sensible/Readme.info
[generic]                11263   31556  35.7% -lh5- 583e Feb 24  1996 Sensible/Sensible.IFF
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         4 files   12705   37809  33.6%            Mar 31  1996