Cartoon Alien

Hello, fellow blender artists!

I’ve just started using blender and I’m working on a cartoon alien. I know it looks pretty bad and stuff so I need some feedback on this alien. So there are a few things that I need help with:

https://blenderartists.org/forum/attachment.php?attachmentid=462634&d=1480818881

  1. Does this model look good?
    https://blenderartists.org/forum/attachment.php?attachmentid=462635&d=1480819050
  2. Does this hand look good and if yes should I keep those plunger things on the tip of the fingers?
    https://blenderartists.org/forum/attachment.php?attachmentid=462636&d=1480819147
  3. Can you give me some advice on the head?

If you see anything else that’s wrong with this, please let me know. Thanks for looking and responding to my message and all the best in your future projects!