I have found a great tutorial that shows you how to draw Spiderman, but I use it as drawing the webs on his costume. I find it very helpful and think you will too. Be sure to keep practicing. If you want to view the original, go here: How to Draw Spiderman.
Here’s another part of the tutorial where it shows you how to draw the webs on Spiderman’s face. It’s pretty helpful just as I said, and if you like to do it from your tablet or paint directly from your pen device you can go to a website that offers this type of solutions, a lot of professional gamers do this to create their own characters on the games and you can dowload an app or just a booster so your computer wont get slow and stuck while you do it, you can find out more about professional gamers and how they work and which tools can you start using.