It's been a while...
When i play Fallout 4 I play in a specific way. When i approach combat I quick-save and proceed toward the combat zone in such a way that i can toggle fly-cam and freeze time to take a screenshot with the menus / UI disabled to later take into Photoshop.
In this instance (The first fight with robots in the Automatron DLC) I used a Shishkebab (Flaming Sword) and froze time just as my character followed through on his sing. I thought the pose was pretty cool.
I added a lot of layers to pack more action into the scene. Here i made a Gif to demonstrate (roughly) the layers.
*there are more but some things were unnoticeable
Here is the Image : http://www.newgrounds.com/art/view/tommobyrne/fallout-4-scrapbot-v-flamer