Nuggets

Writing a hooky opening line is always challenging. This might help.
http://www.superheronation.com/2011/01/26/some-observations-about-the-best-opening-lines/

Character voice
http://www.helpingwritersbecomeauthors.com/2013/12/common-mistakes-one-symptom-weak-character-voice.html

An excellent post on subplots
http://www.crackingyarns.com.au/2011/01/30/the-one-subplot-you-really-need/

How to write an ending
http://www.plottopunctuation.com/blog/show/does-your-denouement-murder-your-characters

I found this post about emotional arcs of scenes thought provoking
http://www.helpingwritersbecomeauthors.com/2015/01/characters-emotional-arc.html 

An excellent guide for writing scenes
http://www.advancedfictionwriting.com/articles/writing-the-perfect-scene/