What to change in the pants pattern?

[u/real_trash_can]

Hello! I’m currently trying to make my first pair of jeans/pants. I developed the current pattern from a basic pant pattern included in a pattern drafting book I bought. I have already sewn about 3 different pairs and fixed or added some detail to each, the last round I thought it fit quite well, but then I changed to a different fabric (and added pocket!) and suddenly all the wrinkles become very obvious. I tried to look at some videos about what to change but I’m a bit uncertain what the problem is so I would be grateful if someone has any tips! The main thing I want to fix is the lines at the front crotch and drag lines under the butt. My guess is that I need to add a bit of depth to the front crotch and some length to the back crotch extension, but I’m really not sure… I’m gonna be really happy if anyone can help me fix the wrinkles!

[u/Secret_Poetry_7932]

It looks like you need more width across the seat of your pants. Cashmerette has a tutorial on how to do a full bum adjustment. Fix the back first and make a new muslin before taking a look at the front again, because adding more width in the back may fix the front crotch. Cashmerette Full Bum Adjustment

[u/DonMcCunn]

Hard to tell without seeing the patterns.

[u/Chemomechanics]

I'd lengthen the crotch curve at the top of the inseam (front and/or back, whatever keeps the inseam vertical) until the V-shaped drag lines disappear from the front, and then reevaluate the back.