Very cool result !

Maybe you can try this free one for unjaggies your big format. even *4 size if needing... https://deep-image.ai

Ps Your original image is too large for be loaded in the prog...so half it then size*2 or more in the prog... ;)

Speedy test with your bootle half size (then size *2 + strong unjagg both in the prog) result is done in PNG as given in png