hello I saw that alot of people were up loading there sketchbooks so I deemed it necisary for me to also 
I try to mostly sketch from my head usualy the ones that are really realistic are the ones I sketched from a ref.
Ive been sketching alot lately so give me some feed back.
Ill upload some older sketches later.
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:(-stop licking me!!!)
I used to use pencil a lot but pen is better for line development in my opinion.
Try to organize yourself a little bit! Use pencils for drawing the base sketch and can use pen or other tools for final work! Or do it with pencils all the way!
I use pen too!
I was going for the whole cologe look
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I konw , it is better to get them like a little miniatures of an full drawing 
so you can use some for inspiration in future.
I have some like this along my table… :))) good for mind map 