Specific Odd request - little help please!

[katygomez]

Hi there!

I would like to request you to photoshop katy perry into these pics with selena (substitute the face of the person selena is with for katy, to look like they're together), if possible.
Here goes some photos i selected, feel free to use whichever suits best.







Many thanks! xx

 

[polarwoc]

If it does not seem natural, just let us know what changes you think would improve it.

 

[katygomez]

If it does not seem natural, just let us know what changes you think would improve it.

View attachment 85210

Thanks for your work!
It just seems a bit unnatural, maybe the head is a bit too big? or the position
If it helps, here's a photo i found that could (probably?) fit

 

[ZeroCool22]

DONE:

 

[katygomez]

DONE:

View attachment 85220

It’s pretty cool, thanks! Could you please just try to reduce katy’s face proportions just a bit? It looks a bit large. But thanks for your work and time!