Brown stood out after sealing a season-long loan move from the Blues as Danny Ward's first-half strike sealed a first win of the season.
He said: “It was a crazy day but a great one for me. It didn't start off well as I went into the wrong dressing room for some reason, but hopefully I showed everyone what I can do.
“It was hard and totally different to playing in the Under-21 league. My legs were so heavy and I thought I'd played 90 minutes by half-time.
“I lost my man a couple of times and the lads were soon quick to let me know but that's all part of the steep learning curve I'm on.
“The Championship is so tough, we're all in it together and I'd be just as quick to let one of the lads know if they weren't pulling their weight.