They are definitely too tight on you. Probably too short as well.
uh what? they're chinos... not jeans. It's not like he needs extra inseam for stacking...
also, I'm surprised at grit's comment about the top block. I sold mine awhile back because the thighs were too tight, but then I have decent size (though not huuge) thighs and even for me they weren't glued-on tight.
BTW, its just my opinion / could just be this particular pic... but Grit- you don't have "extremely skinny legs/thighs", more along the lines of normal build.