Here are pictures from my wardrobe. Let's admire a real Brioni sportcoat, and real Brioni trousers:
Divine hand-made buttonhole on the jacket, front:
Same one, back:
General shape of the undercollar (that's a DB jacket):
Details - subtle seams and rounded edges:
Trousers. Well-stitched waistband - note the V-split in the back, which means comfort and high quality:
Closer... Note the "Brioni" mention all over the waistband, and the mandatory tag:
And let's compare this with your fake.
Please leave negative feedback to the seller. If he's a pro, he could not ignore the utter fakeness of his item.