Wanted Critiques on Gesture Drawing & Regular Pieces

Hayo. I'd appreciate if people could critique some of my gesture drawings from today and some of my older pieces of art.

Gesture drawings 11/26/14:
https://38.media.tumblr.com/f9ff59d3835ef3d49c6d97d0361072b7/tumblr_nfosz5AVfF1qfl03xo1_1280.jpg
https://33.media.tumblr.com/efc39991abcca4cc90f2cacca1837709/tumblr_nfosz5AVfF1qfl03xo2_1280.jpg
https://33.media.tumblr.com/797ef1d4bdc85c7582a479406c9b0b9b/tumblr_nfosz5AVfF1qfl03xo3_1280.jpg
https://38.media.tumblr.com/1d439c473f0a7e872745591894b9099c/tumblr_nfosz5AVfF1qfl03xo4_1280.jpg
https://38.media.tumblr.com/849e941c405ff7e0f607eef9abc35874/tumblr_nfosz5AVfF1qfl03xo5_1280.jpg

Art Pieces:
http://carrmx0.deviantart.com/art/Lightheadedness-436321552
http://carrmx0.deviantart.com/art/But-She-s-Not-Gonna-Change-434217324
http://carrmx0.deviantart.com/art/Shy-429286103

For some of the gesture drawings I used a Proko video as reference, and for the rest I used this website. Thanks.

I am also a starter. Comparing your drawing with mine I feel your body structure is more solid than mine. The problem I think is you use too many lines to reach the profile and miss to finish the hole body. I guess you can try draw it faster.

Just some opinions~

Your lines are soft light so you could practice getting the weight and detailing. It looks like you might want to study some arms and hands. The art pieces are stylized so its harder to judge the figure the same way.

I think you're doing great. I have taken and now teach portrait and figure art. The essence of gesture drawing is to warm up and capture the motion and or position of the model not the details of fingers or eyes. this is why the 30 second sessions exist. I believe that's what you are doing and it looks good. keep it up.