Who are you kidding? It's a piece of film not much bigger than a postage stamp. I don't give a damn about pixel talk or how things look on the web. I'm surrounded with 4 foot wide prints on my walls where you'd need reading glasses or a loupe to see the full detail (where the image is truly in focus, that is). You can't even make a 5x7 inch print from 35mm with that kind of detail.
Go find the best 35mm lens in existence and you're not going to hold a candle to a MF image taken with a garden variety lens, let alone match competent sheet film results. Size matters.
I'm certainly not criticizing 35mm photography. But I scratch my head when aspiring photographers go out and spend thousands of dollars for the "latest and greatest" 35mm or DLSR lens, when for a fraction of the price they could pick up a decent used MF camera, if detail is their objective.
What you've just posted, L., is mush, not detail. That tells me your "proof"scan isn't in focus at all. I'd rather see distinct grain than mush. I know what Velvia grain looks like; I've shot the darn stuff in multiple formats clear up to 8x10, although I've never considered it a versatile film.