Butter pastel or just butter?

Bought this little guy 9 months ago as a butter pastel... Posted a picture of him on reddit and was questioned whether it had any pastel in him. So i thought I'd just confirm it with you guys, what do you think?

Picture from the seller
http://ball-pythons.net/gallery/file...47827094_n.jpg

When I first got him in January(sorry, the lightings a bit off here)
http://ball-pythons.net/gallery/file.../seb_day_1.jpg

What he looks like now
http://ball-pythons.net/gallery/file...5/8/seblad.jpg

Let me know if better pictures are required :)

Butter Pastel

Definitely a Pastel butter or lesser depending on if you think the lesser and butter gene is the same or not.

I picked up a pastel lesser not too long ago and she has the same coloring as yours.

Butter pastel