Ooh i like that new intro "You are watching Peak ASMR" i just thought the next line was gonna be "Hope you all are having a Peak Day" but "An amazing day" Works too, hope your day is Peak, Mr. Blizzard Peak.
I don't think whispering is the best but talking with a soft voice and the way you talk would be excellent. Also, have you considered eating videos. It may sound kind of weird but a lot of people find them really soothing, you don't need to record yourself eating just the sound, I know it sounds weird but give it a shot it might be more successful than you think.