In 25 years, he's collected shots of many a Texan. From those that draw "ohs" and "wows" to some that arouse a chorus of who? O'Brien has been called an "adoptive Texan" and lives in Austin, so there's a fairly good chance that the Texas tales he's heard have inspired him. After all, he's dedicated an entire exhibit, The Face of Texas: Photographs by Michael O'Brien, to Texans. See the Face at Fort Worth's National Cowgirl Museum and Hall of Fame, 1720 Gendy St., through May 2. Admission is $4 to $6, free for kids 5 and under. Call 817-336-4475.