Some models are shown so tiny and others are so huge that the head gets hidden behind the istripper bar!!!
Every model should be shown at full height as it was before yoiur redesign
I don't like the redesign!!!

Can you link a page that shows tiny models, or where some are tiny and others are huge?
I have not seen anything like this on the new website.
I have looked several times at many different things, and commented, but never saw this.

Similar to one thing you mention:
The Istripper bar (title bar)
When going to a card page from the store page or any specific models page, the text to go back is partially hidden by the title bar, which overlaps this.
(the text is back to store or back to models)

https://www.istripper.com/models/Esteria/A-Touch-Of-Pink-e2149

Normal size

https://www.istripper.com/models/Jelena-Volkov/Netted-For-You-f2122

Tiny size

https://www.istripper.com/models/Lea-Pam/Flamed-Pancakes-f2115

Head is obstructed by iStripper bar


This was not happening in the old website

I see no problem with any of the three main card pics, that is those that show top right of a card page.

I see Esteria and Lea both as normal.
The animation is normal size.

I do notice that Jelena is rather small.
Maybe 720p was used for her animation.

I took a longer look, and multiple plays, of Lea. I cannot see any obstruction.

Where is there a head obstructed by the title bar? I see nothing like that on those pages, including Lea.
Maybe take a screenshot of that part of a page, and put the link to that screenshot here.