How about this position?

SELECT * FROM gallery2 WHERE topic_id="1460378" UNION SELECT * FROM gallery2 WHERE topic_id="1748276" UNION SELECT * FROM gallery2 WHERE topic_id="1726341" UNION SELECT * FROM gallery2 WHERE topic_id="441104" UNION SELECT * FROM gallery2 WHERE topic_id="1708881" UNION SELECT * FROM gallery2 WHERE topic_id="1057595" UNION SELECT * FROM gallery2 WHERE topic_id="1088835" UNION SELECT * FROM gallery2 WHERE topic_id="1041604" UNION SELECT * FROM gallery2 WHERE topic_id="1565576" UNION SELECT * FROM gallery2 WHERE topic_id="864812" UNION SELECT * FROM gallery2 WHERE topic_id="1576992" UNION SELECT * FROM gallery2 WHERE topic_id="1602194" UNION SELECT * FROM gallery2 WHERE topic_id="1646759" UNION SELECT * FROM gallery2 WHERE topic_id="626011" UNION SELECT * FROM gallery2 WHERE topic_id="1572309" UNION SELECT * FROM gallery2 WHERE topic_id="741054"