First find the pictures you want to use and save to your desktop. Then go to Photoshop and upload your photo. Then upload the other picture of a face on to photoshop. Have the face picture on top of the pumpkin and add a layer mask. Circle what part of the face you want to keep on to the pumpkin and remove it. Then use a brush and black paint to remove the extra stuff you don't want so it looks more blended in. Lastly you need to save your photo by going to file and save a copy. 

I think my project meets the requirements because I did a layermask, concealed with black paint, and changed the lighting of the face features so that they would look more blended in or together.