For those who sort by new

SELECT * FROM gallery2 WHERE topic_id="712249" UNION SELECT * FROM gallery2 WHERE topic_id="75658" UNION SELECT * FROM gallery2 WHERE topic_id="930823" UNION SELECT * FROM gallery2 WHERE topic_id="1192115" UNION SELECT * FROM gallery2 WHERE topic_id="997454" UNION SELECT * FROM gallery2 WHERE topic_id="1540171" UNION SELECT * FROM gallery2 WHERE topic_id="62893" UNION SELECT * FROM gallery2 WHERE topic_id="1424941" UNION SELECT * FROM gallery2 WHERE topic_id="162540" UNION SELECT * FROM gallery2 WHERE topic_id="1514278" UNION SELECT * FROM gallery2 WHERE topic_id="1763541" UNION SELECT * FROM gallery2 WHERE topic_id="758614" UNION SELECT * FROM gallery2 WHERE topic_id="1198238" UNION SELECT * FROM gallery2 WHERE topic_id="1804342" UNION SELECT * FROM gallery2 WHERE topic_id="1805918" UNION SELECT * FROM gallery2 WHERE topic_id="1297428"