Yes indeed! I couldn't project at first and could barely visualize. I drew my astral temple on paper first and wrote a list of what I wanted inside.
It really does make it how you wish it to be perceived down to the last detail! As you become more advanced your Astral Temple will become more vivid and clear. You can change your temple at any time. A great place to strengthen your astral senses I may add, I always burn different incenses in mine and focus on the smell.