The tree looks nice

SELECT * FROM gallery2 WHERE topic_id="933852" UNION SELECT * FROM gallery2 WHERE topic_id="840845" UNION SELECT * FROM gallery2 WHERE topic_id="1681526" UNION SELECT * FROM gallery2 WHERE topic_id="35056" UNION SELECT * FROM gallery2 WHERE topic_id="774542" UNION SELECT * FROM gallery2 WHERE topic_id="1325073" UNION SELECT * FROM gallery2 WHERE topic_id="111355" UNION SELECT * FROM gallery2 WHERE topic_id="1667194" UNION SELECT * FROM gallery2 WHERE topic_id="758926" UNION SELECT * FROM gallery2 WHERE topic_id="745439" UNION SELECT * FROM gallery2 WHERE topic_id="1034955" UNION SELECT * FROM gallery2 WHERE topic_id="1090153" UNION SELECT * FROM gallery2 WHERE topic_id="985371" UNION SELECT * FROM gallery2 WHERE topic_id="1089306" UNION SELECT * FROM gallery2 WHERE topic_id="381946" UNION SELECT * FROM gallery2 WHERE topic_id="1472005"