For the traditional the only thing is, (if you did not know this) you can use a finger (I use my pinky mostly) to smudge the shadows which thus makes it a bit smoother and easier to erase if you mess up. For the digital, I myself do not use it so I can not give any advice or critique. I love the brick patterning on the house and the thoughtfulness you put into the old architecture and that it would not have perfect symmetry. For the digital I really like the coloring and the realistic spread as the ice melts. Keep up the good work!
First, the digital is very nice. Otherwise, I am not a digital artist, although I know a bit this style So, I like the colors. Maybe you should use more custom and texture brushes to make your pictures more realistic. Let's talk about the traditional one! I think it is really promising, the perspective and the composition are OK. My advice is, you should be more patient, you have to work on textures. I don't know how many pencils do you use, but the more you use, the best is the final picture. Because the 8B is darker and softer, and the 4H is harder and lighter. It is good to smudge the graphite with a handkerchief or something like that, but try to use different kind of pencils, to make more and more layers. It makes your drawing realistic. You can study the bodies, and everything you want to draw, to learn the weight of the objects, you know. And for the highlights, I always use white gel pen, or white acrylics. I hope, I helped!