Clouds Exercise (How to Train Your Dragon) - Pencil Sketch - April, 14th, 2018

This is my first attempt at sketching clouds, and as reference i took a shot from the first How to Train Your Dragon movie

I followed these two tutorials on youtube, very helpful for a beginner like me!
https://www.youtube.com/watch?v=YdfPFMx_clQ
https://www.youtube.com/watch?v=qZQ7XUKwFtc

As usual, comments and suggestions are very welcome... thank you all for passing by!!!