FOM Tiff+mell+Daddybutt

Work in progress of my second commission, this is the sketch for the pose, but i did start to add details...

Took me a wile to figure out what to do with their hands so tiff has one hand on her hip, kind of motioning her thrust wile the other is hidden behind mel, and mel has one hand on the butt cheek of daddy like trying to speared more her anus so her cock can enter there better, her pelvis is trusting forward and Tiffaniy is trusting backward , like drilling that but. Don't know if you like Mel making a peace sign; both are looking the viewer, though it fit because was for a page presentation.
Anyway, this is the sketch so feel free to make suggestion on what to change, work more or what not.. 
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Here the changes!

 "more muscles" for Tiffany, Add more boob size as the picture provided later suggested had bigger bewbs, a slight change in the pose and face expression plus destroyed ass for daddy; please let me know what you think.

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Lines ready! 

yes i know, Tiffany has a change in the pose, but i was not happy with the results after i finish the lines two days ago.. So I remake her pose entirely.  Though will be better if her left hand was clearly seen, she is now drilling that ass, the idea is to make it look like she is pushing her cock deeper, her face features now show a sexy evil smile. Also she is taller, and add more pub hair ...Oh! and bigger balls. hope you like it better this way, I certainly do.
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Colors! hope you like it! ^_^

this one is the preview so it has a back ground the original is cropped like you ask me, in png format, should i size it to the size you need?