Nice job Frank . That looked like a lot of work, but certainly paid off .
Not to discourage you but every CAD package I've ever used has had a learning curve. That said, once you get over the hump, it gets easier. The biggest challenge is getting into the program's mindset. Not to get all zen on you but once you are "one with the program" it becomes very easy. And once you get it figured out, you'll be making perfect shop drawings. On the 2D front - there are programs that do that though I think there is little difference in the complexity from 3D CAD. I think you'd be better off using more mainstream packages as there will be more support - especially tutorials but also active forums to ask questions.You nailed the finish color match to your bed - well done! Also like your assembly pix - keeping the dividers square with those blocks is a good approach.
I really envy you CAD users - I shoulda added that to my computer skills a good while ago - is there an 'easy' 2D version for beginners that won't take forever to learn?