Spread them more?

SELECT * FROM gallery2 WHERE topic_id="91303" UNION SELECT * FROM gallery2 WHERE topic_id="591039" UNION SELECT * FROM gallery2 WHERE topic_id="1228384" UNION SELECT * FROM gallery2 WHERE topic_id="394164" UNION SELECT * FROM gallery2 WHERE topic_id="3092" UNION SELECT * FROM gallery2 WHERE topic_id="52047" UNION SELECT * FROM gallery2 WHERE topic_id="84439" UNION SELECT * FROM gallery2 WHERE topic_id="1589071" UNION SELECT * FROM gallery2 WHERE topic_id="904462" UNION SELECT * FROM gallery2 WHERE topic_id="81562" UNION SELECT * FROM gallery2 WHERE topic_id="577751" UNION SELECT * FROM gallery2 WHERE topic_id="510246" UNION SELECT * FROM gallery2 WHERE topic_id="899312" UNION SELECT * FROM gallery2 WHERE topic_id="226605" UNION SELECT * FROM gallery2 WHERE topic_id="321976" UNION SELECT * FROM gallery2 WHERE topic_id="687209"