You're off to a great start. You considered his feelings and kept the visit in a place he feels safe. GREAT JOB!!!
I wrote a 4 part blog that had a list of questions to ask to help keep his schedule and things that he is used to. You can find it all here.
Adopting from Foster Care Blog - Questions About Your Child - Behavioral and School
As Mommytoeli suggested, having an album or scrapbook that is HIS that he can look at and become familiar with makes a huge difference. My kids have loved these books and even after living in our home would take them out regularly and look at the pictures. My son is now 15 and has been with us for 9 years and he still has his. I also wrote a blog about the books I created and you can read it here.
Adopting from Foster Care Blog - Welcome books
Trust your instincts. You're right on so far. Thank you for loving this child!