Are you on pinterest? If you are using lightroom (also for photoshop and elements) totally do a search on black white conversions! Mine suck so I’ve been delving into tutorials online lately and pinterest has been my go to site for finding them now. I’ll usually open up lightroom and then flip back and forth between a photo I’ve picked to work on and the tutorial.
The big thing I notice is that the editing style isn’t consistent between shoots. I’m not sure if it’s because you are just uploading SOOC or if you have actions/ presets that you are mixing in post. iheartfaces.com just recently had a blog post about developing your own consistent editing style so that you can have faster workflow, clients know what they are getting, and so on. I would also try printing the matte look ones and seeing how they look on matte paper. I personally don’t edit that look on purpose, so I don’t know if this is true or not, but I’ve heard it prints horribly and while it’s a big look floating around it isn’t going to make a great print on the wall.