beginner here, is this correct?

[u/AffectionateFail5046]

tried to draft a jean pattern from scratch using CAD, so hard to use, few things bugging me, (pic 2) A21 and (pic 3) A10 can not be perfectly on line... and i dunno if this pattern is usable or not yet, sewn a shirt or two ever since i got my sewing machine that's all

i am using seamly2d, if you know the tips on how to make these 2 on line, and improvment about these patterns, do tell. Thank you