I am shooting pictures for our sleepwear brand but I have limited budget/equipment:

* Nikon D40
* Lenses: 18-105mm & 50mm f1.8
* Flash: Yongnuo YN-560
* Tripod

We have some lights from the top that I directed to the background that I used and the flash was directed diagonally between the ceiling and the subject with the incorporated diffuser out.

I shot with the 18-105mm using some zoom and with 400 ISO. Manual mode with an aperture setting of around f/9. I also used a tripod with the timer for the shot.

However I got very bad results:
![enter image description here](https://i.stack.imgur.com/qbJCG.jpg)

Which I could turn into this:
![enter image description here](https://i.stack.imgur.com/AcmK7.jpg)

But I need advise to improve my initial images and facilitate the editing. Again, limited budget. I could maybe buy some cheap lighting, cheap diffuser for the flash, etc.