the f*ck am I looking at Try to get a better render next time. Also I see what you were going for but the way you positioned your render looks awkward. Lighting effect is a good tool for stuff like this (atleast I use it alot)
wtf rf doesn't fit with irl. dont relate rf to anything it'll just ruin it. I bet if you had a better render or an anime picture it'd fit better
. a render is a picture of a character/object/someone's mom with a transparent background aka ur rf character that's awkwardly in the middle like that
it helps to use the "rule of thirds" grid the more the subject intersects the lines of the grid, you can create more focus on what you want in the photo also important to note that the horizon line should be lined up with the second horizontal line of the grid the photo you have right now has too much negative space, and what ends up happening is that the viewer is focused on the environment rather than the person in the photo
the thing about your picture is that your rf character is too sharp in comparison to the background. try to blend it in with the picture a bit more, sort of like this masterpiece