the waist looks okay for presoak, but the legs definitely look "loose" for a slim cut.
You'll lose a good amount of length on the inseam, and the waist as well. The legs are what I'm worried about since the opening doesn't seem to taper very much. I'd try to size down 1 more if they'd let you, if not, you can soak them in steaming hot water for 2-3 hours and you'll get plenty of shrinkage. It'll look good post-soak, like I said I think the only thing I'd worry about is the leg opening (which can be fixed by a tailor if anything)