Well, this'll be a critique for Become-better. Hope it's helpful for you! I'm going to do the compliments after I point out a few things that can become improved for next time. Firstly, the background is nice, yet around the mouth area, it gets a bit not as well done -- almost rushed. Be smoother and more precise with your strokes, so that when you are blending, it comes out smoothly. You should also fill the WHOLE of the back ground with the same amount of shading. The next thing is the neck. The presentation of your drawing would look better if the bottom of the neck wasn't "fenced" with an outline, but rather, let it fade into the darkness of the shadowy background. This will also make the viewer wonder how much more of this creature there is! There are parts of background not touching the lizard, and that is fine, but if you're going to do that, then do it ALL around the head, and make the space reasonable, and even throughout. Lastly, don't show the second eye. The angle you chose, we should only have to see the ridge of the second eye, not the eye itself. Now on to what's good! Your darks are wonderful! They truly bring out the highlights of your lizard, creating depth and fullness. The eye is very well done! Simple, yet the intense expression set the picture's mood perfectly! Great work with the scales, yet remember not to get too carried away or it will become too busy to enjoy looking at. Oh yes, your proportions are well done as well! Well, that's enough, great work, and look forward to what you've got in the future!