I hate to burst your bubble, but I don't like it. As I zoom in to examine the details, I can see that that the edges are now messy, not crisp like the original. And the surface finish now has a rough texture, whereas the original was smooth. It probably looks good from afar but it's far from good IMO. Fine for a proof of concept, perhaps, but I couldn't live with it on my own car. To me, the Alfa is a classy upscale looking car and this mod looks cheap in comparison. But if you like it, then that's all that matters.
I've seen some Plastidip jobs that have a much smoother and flatter surface finish, so I'm not sure if the issue is with the particular product you used or your application in this case (cleanliness, temperature, humidity, technique). The manufacturer says you should allow 30 minutes minimum between coats, yet you only waited 15 minutes. You might want to peel this off and do it all over again to achieve a better finish. Just be careful scraping away the Plastidip from the body paint so you don't scratch it. I know you don't have to mask Plastidip but in this case you might get a cleaner edge if you did. But with all masks, the trick is knowing when to pull it up so you get a sharp edge and don't mess up the paint.
If I had to have a black Giulia badge on my car I would probably remove the OEM badge and replace it with a new badge that was refinished with Cerakote ceramic coating (very thin film and safe on plastics) or with a quality automotive 2k urethane paint. The Guilia badge is a tough one though because it is supplied between two sticky sheets: the backing sheet protects the mounting adhesive and the front contact sheet keeps the letters properly aligned during installation. So to refinish it you'd have to remove the front contact sheet without disturbing the letters, spray the letters black without letting too much paint bleed onto the backing sheet to avoid joining together with the letters, then allow it to fully cure before applying a new contact sheet to the front to hold your letters together in perfect alignment for installation. And hopefully then you can remove the backing sheet to expose the adhesive without the paint keeping them stuck together. A lot more work perhaps, but likely a much better looking option.
