Help with seamless yoke sweater

I've read from the post from Jan 13 here that there is an updated version of EZ's percentage system. Instead of 3 times decrease 33%, you do 1st-25%, 2nd-33%, 3rd-40%. Also 8% is too tight (then what it should be?). Ans that sleeves are jenerally too wide (again-how wide they should be to be slim?)
Is there something else that I'm missing? I'm working on it now (as you know already--see my disaster below) and want my sweater to be perfect).
P.S. Update--I've redone the body already and begun the first sleeve)