discover windlights (Windlights affect the way the picture turns out even editing might not help sometimes if you choose the wrong one)
find an angle that you like
zoom in or out Ctrl Shift and Fn + 8 9 0 should be your bestfriends. try them.
if you use black dragon, which i really recommend, You can rotate the camera angle, you can do so many much than firestorm. It may seem hard to use at first but once you discover it and play around with the windlight settings you'll get the hang of it.
if you're wearing a colorful outfit or a busy pattern, dont use too colorful backdrops because they'll distract away the attention from whatever you're wearing (take it from a blogger). You might wanna try simple backdrops and vice versa.
Try adding elements to your picture. I came to a conclusion that people like a detailed picture on flickr. If you think you're picture is missing something add an element like birds, a piece of furniture, pets, etc.
You can play around with windlights and make your own by going to environment and edit sky.
depth of field is helpful too if you want to blur your surroundings in a picture without just blurring it on photoshop (really helpful tip). You can use it when you go on ultra, or you have all the graphics checkbox checked.
I hope it was all helpful! I'll add more if I come across more!