Referencing Stall/Spin Awareness by Rich Stowell for NASA spin mode classification: steep 20 -30 deg angle of attack, moderately steep 30-45 deg, moderately flat 45-65 and flat 65-90 deg. So, 45 deg and more is flat.
The Basic Aerobatic Manual by William Kershner and a Flight Magazine article of 28/10/78 provide info on pitch attitude in a fully developed spin with normal controls. 45 deg nose down (which equates to 45 deg angle of attack) can be achieved although usually about 70 deg nose down and sometimes spiral characteristics - CG is a factor.
Try some aileron.
60-Turn Spin in a Cessna Aerobat! - YouTube