I still offer you two options !

SELECT * FROM gallery2 WHERE topic_id="714225" UNION SELECT * FROM gallery2 WHERE topic_id="1352840" UNION SELECT * FROM gallery2 WHERE topic_id="1327254" UNION SELECT * FROM gallery2 WHERE topic_id="1582486" UNION SELECT * FROM gallery2 WHERE topic_id="149794" UNION SELECT * FROM gallery2 WHERE topic_id="781348" UNION SELECT * FROM gallery2 WHERE topic_id="1315154" UNION SELECT * FROM gallery2 WHERE topic_id="1197222" UNION SELECT * FROM gallery2 WHERE topic_id="661373" UNION SELECT * FROM gallery2 WHERE topic_id="711676" UNION SELECT * FROM gallery2 WHERE topic_id="1408365" UNION SELECT * FROM gallery2 WHERE topic_id="554621" UNION SELECT * FROM gallery2 WHERE topic_id="1628221" UNION SELECT * FROM gallery2 WHERE topic_id="339863" UNION SELECT * FROM gallery2 WHERE topic_id="361765" UNION SELECT * FROM gallery2 WHERE topic_id="1807745"