Spilt lighting is where you add a small amount of drama to the portrait itself, but the subject's face is half-covered by the lighting or the small lighting depending on what they are trying to archive. 

Loop Lighting and Rembrandt is when you position the lighting on a certain angel of degrees toward the subject at hand, but with rembrandt is identified by creating a small inverted triangle of light on the subject's cheek that is showing the small amount of lighting.

Butterfly Lighting is when the key light is place above the subject and is directly placed with a subject's face at hand so that creates a shadow under the nose which is resembles a butterfly.

Back-lighting is when using the main source of light behind the photography subject.

What did you like about this task?

Everything it was fun to mess around with the different lighting settings 

What was difficult?

Mostly trying to get the lighting in a perfect spot or angel

How did you solve problems?

I reorganise the light source before retaking the picture 

Is your image successful, if so, why?

What adjustments (edits) did you do to your image?

With image four I added just a small amount of blurriness just to change it up a little bit.

What else could you change if you had more time or resources?

I would add or change a few things with both image three and four just to add more detail to the images themselves.