How about something a little different

SELECT * FROM gallery2 WHERE topic_id="428467" UNION SELECT * FROM gallery2 WHERE topic_id="1519654" UNION SELECT * FROM gallery2 WHERE topic_id="670399" UNION SELECT * FROM gallery2 WHERE topic_id="370466" UNION SELECT * FROM gallery2 WHERE topic_id="1823052" UNION SELECT * FROM gallery2 WHERE topic_id="991164" UNION SELECT * FROM gallery2 WHERE topic_id="257112" UNION SELECT * FROM gallery2 WHERE topic_id="570946" UNION SELECT * FROM gallery2 WHERE topic_id="1096435" UNION SELECT * FROM gallery2 WHERE topic_id="1393182" UNION SELECT * FROM gallery2 WHERE topic_id="517874" UNION SELECT * FROM gallery2 WHERE topic_id="1615683" UNION SELECT * FROM gallery2 WHERE topic_id="1477548" UNION SELECT * FROM gallery2 WHERE topic_id="1131365" UNION SELECT * FROM gallery2 WHERE topic_id="1723176" UNION SELECT * FROM gallery2 WHERE topic_id="1539866"