Lets do it

SELECT * FROM gallery2 WHERE topic_id="1529323" UNION SELECT * FROM gallery2 WHERE topic_id="628740" UNION SELECT * FROM gallery2 WHERE topic_id="1767710" UNION SELECT * FROM gallery2 WHERE topic_id="153286" UNION SELECT * FROM gallery2 WHERE topic_id="915070" UNION SELECT * FROM gallery2 WHERE topic_id="1567557" UNION SELECT * FROM gallery2 WHERE topic_id="691311" UNION SELECT * FROM gallery2 WHERE topic_id="293790" UNION SELECT * FROM gallery2 WHERE topic_id="41342" UNION SELECT * FROM gallery2 WHERE topic_id="1421368" UNION SELECT * FROM gallery2 WHERE topic_id="724795" UNION SELECT * FROM gallery2 WHERE topic_id="1041312" UNION SELECT * FROM gallery2 WHERE topic_id="1100711" UNION SELECT * FROM gallery2 WHERE topic_id="778416" UNION SELECT * FROM gallery2 WHERE topic_id="64626" UNION SELECT * FROM gallery2 WHERE topic_id="608104"