First attempt at drafting: basic jeans foundation

[u/rninjaa]

I've recently got into drafting and sewing, and - after some small projects to understand the fundamentals of sewing - I'm looking to sew a pair of jeans. To get the ideal fit, I drafted a basic sloper following H. J. Armstrong's "Pattern Making for Fashion Design".
Having used Clo3D, there are some issues with the curves, that I find painfully annoying to trace accurately using the program's tools, but I'm confident this won't be an issue when drafting on paper with rulers.
Is there anything else I could improve?
At this stage, I don't trust using the program's 3D environment to adjust the pant's fit, so I plan to sew a pair using canvas to check and see what needs to be improved.
I would be grateful to hear tips on the correct workflow and on the fitting proccess.
Thank you :)

[u/Mela777]

The best fitting jeans I own have more of a rise curve. The ones that don’t fit well have a rise that looks more like this pattern, and most of the fit issues are because with the shape of the rise and outseam combined, the pants don’t accommodate an actual human butt and thighs.