End result looks pretty good.
A few suggestions:
1 What are the uneven ends for inside the straight leg, that belong to the other combined leg and arm? You could delete them as they aren’t seen. Use Intersect Faces to split the arm where it joins the leg, then hide the straignt leg and delete the excess on the arm
You might need to work on a scaled up copy for the Intersect Faces, because SU doesn’t work well creating very small faces with edges smaller than about 1/32 to 1/16 of an inch. Search the forum for ‘the Dave method’ of doing just that.
2 You don’t need nearly so many segments (though I know it was probably the default - six per quarter circle) in the FollowMe profile you are using. It creates many more faces than you need for almost any purpose I can think of. I’m guessing that no more than 6 segments per half-circle at the ends of the oval cross section would be plenty to look well, and even three or four might work well enough, too, depending on how close-up you want to view the model in the finished result. If it just for a chair as a subcomponent to ‘furnish’ a house, surprisingly few segments are quite enough for a room-scale view…
3 Why do you have the diameters inside the profile for FollowMe?
You shouldn’t need them to draw the oval, and I see you haven’t used them later (there would be lines on the tubes if you had).
4 You probably want ends on the tubes.
5 You should make both of the parts (leg, and arm plus leg) into components, and either include them in a finished chair as separate sub components, mirrored to the other side, or even make the pair into one component called something like ‘chair side frame’. Or at the least, make the whole object into a single component ‘chair side frame’.
But again, a nice looking result, and you’ve got the steps pretty well sorted.