How you sing into your microphone should have no bearing on where your vocal sits in your mix. That is a function of the track in your DAW. If it is centered, you could sing turned 90 degrees from your microphone if you choose to (and it would remain centered in your mix).

To add a picture use the "Switch to Full Reply Screen" button.
(An original post should put you there already)
Then click on "File Manager" at the bottom. (mine is a very faint blue - so "active")
Click on "Browse" to find a picture on your computer.
Then click the "Add" button.