This was one of my very first animations. Later animations will have some improvement, but your advice is appreciated and welcome.

Root transfrom has to be up and down sometime to make it look more nartual
keep going m8 :3

Nice going m8
It's still not that smooth but it still better than mine when I started to make SFM animation
I highly recommend you to check this image
https://images.schoolofmotion.com/w950/3b57704f-d551-4c1c-9b1f-e6eda53d6a5d/walk_cycle_inspiration_animators_survival_kit.jpeg
I use it all the time when I'm going to do a walk cycle