Looking great so far. I am noticing a seam in your inner wall's tiling texture though. Also, since you said this might not fit on one map, you can use multiple materials in Sketchfab to save yourself the headache of fitting everything onto one texture map. That will help everything be more sharp than it might be right now.
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Link to an excellent tutorial from Sketchfab themselves and JCSchaeffert; http://www.polycount.com/forum/showthread.php?t=121202
Thank you I didnt know I that. I might do 3 maps now. one for environments, one for props, and one for effects thanks DesireeFernandes