Hello,
Many close-up and detailed photos asking for serious, considered and constructive critique so I would say, for one thing, that an important feature for a good slick is to have a rounded over top side where the user can lay a hand and exert pressure and not have sharp edges digging in there. Conversely, the bench chisels should have somewhat sharp edges up the sides to aid in cutting clean sided mortices. While linseed oil is the right finish for the handles, absolutely no finish is even better.
I think if you were to ask your Swedish blacksmith he would tell you that laminated blades are better quality. This would make these chisels and slicks something special in relation to what is generally available.
Greetings,
Don Wagstaff