I tried sketching something of my own. First, I tried sketching the big overall subject, and then I tunneled down into smaller parts in my second sketch. (I drew over the first by erasing some parts and adding just some positions.) I found that during my sketching, I tend to worry about getting the lines right on the first try and not explore (then double down on the existing lines) + with smaller parts, I tend not to explore and draw loosely at all. Resulting in no energy at all in the sketch. I spent around 30 minutes+ during the first sketch and second sketch each. (Seems kind of too long for the first sketch). The result isn't too bad, but I'm not satisfied yet. Any tips for sketching more loosely & faster with more energy?

I tend to overcorrect my drawings, including proportions, curves, lines, etc. (I'm a perfectionist). In this snail drawing, I noticed that my proportions are a bit off, especially the head and the shell. Overall, the drawing is OK but not that great (7/10), even though I followed the demo step by step.

Before I watched the demo, during my drawing, I didn't really simplify; it was more like copying from references. Proportions are quite a bit off, and my lines aren't the best, but overall, I guess it's OK for now. I'll learn how later.

It's messy but not too bad for the first try. The highlight is kind of hard to see since it smudges all over the place. The shape is okay, but I think I need to improve the value a bit. I only use HB on this one. I did this before watching the demo.