The Restoration Hardware at Yorkdale is NICE. You've already seen the insta pics on your feed probably but the space is absolutely beautiful. It's quiet and serene to walk through and every room has such balance to it.
I would check out the top level for sure because it has a nice Japanese garden feel and an outdoor terrace. I wish this could be a venue for events - that's how nice it is.
The cafe on the first level also has great service. Their food is a bit pricey but if you want to go for some cute pictures, why not splurge on a brunch. I had their avocado, egg and toast for $13 and their Texas toast is to DIE for. I would come back for that alone. I also had a prosciutto, cheese and fruit board which was okay but probably not worth the $22 I was charged for it. I would also say that the cafe on the first floor is really cute. They have a wide variety of espresso drinks and pastries. Honestly the whole place is gorgeous and really worth it for a visit.
Overall a great experience in an already crowded mall.