She cute, and this is allllmost there. Its doodly, but there's enough strength in the character design to hint at an artistic awareness, a comprehension of anatomy, and a realized style that is within all great artists.
Anatomically, people have difficulty with feet, so they'll often just focus on characters in a medium shot or pose them in such a way where it hides their feet. Here, I would've wanted to see you draw the rest of her in the kneeling pose, but she fades away. Limbs become phantom, and you live another day having not drawn a knee or an other foot.
An experience that helped me grow as an artist could help you too. If you have the opportunity to do a live nude sketch model session, do it. This will hone any anatomy difficulties you might be running into.
If thats unavailable...well, we're on the internet. Look up models, and time yourself with your phone. Set alarms, 30 minutes, 15, 10, 5 minutes, and do a different pose each time, working on speed, your brain takes note of the rest as you try and get the whole person down on a sketchpad. This will make you faster and stronger as an artist.
There's clearly a lot of potential in your work to be better than it is today, and I want to see you challenge yourself and improve!