Practicing 30seg

These are some I did the past month. I have a lot more, but I always forget to write down the time I spent doing them. I'm trying to do realistic drawing too, but I've been having difficult with it. Pointers and tips are welcome! I did some drawing in my teens, but the little prince's syndrome attacked, so I left it for +10 years. Now I'm getting at it again, and I'm loving it.