One thing that I learnt about myself today :

I love to torture myself with these laborious design.

A nice tip to draw scale like things. Marks the scales with dots first ,later you connects them with thin brush. Lastly give it hard solid shadows and then highlight it with lil dots

or you can just trace it from stock pics found on google xD Don't be like me, I'm stupid when it come to methods on drawing things easier and faster