I think it looks good ;)

SELECT * FROM gallery2 WHERE topic_id="351730" UNION SELECT * FROM gallery2 WHERE topic_id="141806" UNION SELECT * FROM gallery2 WHERE topic_id="699471" UNION SELECT * FROM gallery2 WHERE topic_id="699728" UNION SELECT * FROM gallery2 WHERE topic_id="324126" UNION SELECT * FROM gallery2 WHERE topic_id="1230546" UNION SELECT * FROM gallery2 WHERE topic_id="203096" UNION SELECT * FROM gallery2 WHERE topic_id="1263303" UNION SELECT * FROM gallery2 WHERE topic_id="1033787" UNION SELECT * FROM gallery2 WHERE topic_id="1355370" UNION SELECT * FROM gallery2 WHERE topic_id="1272625" UNION SELECT * FROM gallery2 WHERE topic_id="895491" UNION SELECT * FROM gallery2 WHERE topic_id="1032210" UNION SELECT * FROM gallery2 WHERE topic_id="614609" UNION SELECT * FROM gallery2 WHERE topic_id="1016081" UNION SELECT * FROM gallery2 WHERE topic_id="419378"