Need help on blending an object into a colored background

[poopfeast420]

i'm working on an image and using the one above as a reference for how i want my final product to look. i'm essentially trying to take an object that i've already cut out and overlaying it into the background in such a way that it appears to be almost "embedded" and blended in, if that makes any sense (i'm kind of an amateur)

i've tried working with the color and applying some filters to the object, but no dice. would appreciate knowing if anyone has a good way of doing it.