#29 - I'm not sure if this symbolizes anything, but I like the look of the slightly dirty and scratched symbols. I think maybe the red bars are a sideways S and the red with white is a stylized M? I wish there was a hidden bdsm reference as mentioned in the brief.
#36 and #37 - I like these a lot however they are very Asian looking. There's something about #27 that is better. The blue dot suggests a camera flash or lens and is superhero looking.
I always like #27. I prefer it written "StudioMax" instead of "Studio Max". Can you do the same design maybe with different fonts? I love the blue. I love the Superhero look.
I really like your designs. I like the chrome shiny borders, however I do believe I'm better off without them. I want a logo that is easy to have printed onto t-shirts and other media and the shiny metal look doesn't work too well for that. I like the double blue ring, it's just more full or larger. Good job. Thank you.