Kitchen or anywhere DIY. Seems simple enough, depending on your gap between shelves, anywhere from ropes to ropes for your spacing. You could even use wider wood, just adjust your rope length to accommodate your width and height of your shelves.
Sans the branch and crystals, ideal for lighting the dome. vintage wooden ladder makes great lighting! This one is wrapped with globe lights, and decorated with vintage chandelier crystals and branches. There are endless variations on this theme!
DIY: Branch Chandelier -- easy to make from found wood and a string of outdoor globe lights. Perfect for a covered porch or a terrace/patio with an overhead trellis. I could do this on the porch if I have any picnics come summer.
Hanging lights on branches. Go natural with a fat branch and hang a combination of ornaments and candles attached with wire. Use twine or strong fishing wire to suspend the branch from above. You might want to try hangers so as not to damage your ceiling.