Newbe - need help to blend 2 images

good day to you
i want to make a new photo combining 2 images and make something like this :



with this 2 images :





i want to make the Vapor iphone case be like in the grass

is it possible to get something nice ?

not sure what you mean

thanks for your replay
i want to take the second image as a background and use a bigger size (to make it looks real) of the second image - i want to make like the iphone with the case is underneath the grass (as the first image i posted)