Hello !
I hope everyone is doing well.
I appeal to you today because I would like to have opinions on the 3 characters that I created for my project. (A dating sim)
Nothing is final yet, I might make some changes, but I would already like to know if my style is okay? Then if the chara-design are appealing? 

Hello! I really like each of the three designs!

That being said, the color palette of the first guy seems a little dysfunctional. I would maybe change the orange sweatshirt to a less saturated color or one that is cool-toned. Also, I think his biceps should be just a tad longer.

The second guy has my favorite design! The shapes, particularly on the face are really organic looking-- I love his expression! Cute design!

The last guy looks really cool too! However, I think his teeth are too small and detailed for his face.

Overall, I'd like to see you work on the jawline a little more. It's a bit unconventional. Don't worry though, ikemen jawlines are really hard anyway, I still haven't quite got it either. Try softening up the chin a little bit first and go from there. I also noticed that your shadows look a bit washed up, perhaps use a multiply layer or a more saturated and darker color than the original when shading.

I really like the way you draw hair and you seem to have a really good grasp on clothing folds. Thanks for sharing your art!