I've replied already, haha :p it looks to me that your thermometer is sitting at about 75, is this correct? 78-79 is ideal but 75 is very good for an unheated tank (actually, its on the low end of what some consider "acceptable") and this is great!
I'm glad to see that you have a tall plant in there now for him to rest on, but I would attach it to lava rock or driftwood so you can move it around during water changes. More decorations and tall plants would really benefit him but you can add new decor slowly, he does not NEED it right now.
Hey Ayala! If you're interested to see the progress I've made with housing Bo, I've posted an update as a reply to the thread~ if you could, would you please mind taking a look to see if I'm going in the right direction? Thank you so much for that amazing list you gave me! I took it to heart! ^_^