I have a section of wall below a chair rail that I am attempting to make smooth. It had a standard builder orange peel texture. I want to paint the chair rail, wall and moldings in a semi-gloss to look like wood paneling. I troweled over the wall areas with joint compound and sanded it all smooth. I have covered with 2 coats of primer, 1st was a cheap-o primer intended for drywall, the second coat was Kilz 2. Both latex. I just used what I had on hand. I applied with a brush and foam roller. Is this enough or should I top with a better quality primer? I think I applied it too thin or maybe it's just the nature of the primers, but I don't have a solid coat, I can see through it. Should I try a build primer so I can sand to perfectly smooth finish? Or should I use a Zinzer or XIM primer? Or should I just go ahead and paint with the semi-gloss?

I am attaching a link for a pictures. The first was taken after sanding, before primer. There is another picture in the album of the same wall after 2 coats of primer. In the right hand "panel" you can still see the joint compound and paint peeking through.