On the one hand, the price of 3d wall panels are vary from pattern to pattern, because the sculpting time of different patterns are different, take WP3017 and WP3114 as an example, thought they looks like are similar in somehow, however, the carving time for these two items are totally different, the carving time for WP3114 is much longer than WP3117, in that case, the cost of WP3114 is higher than WP3017.

On the other hand, the polish time of different patterns are also different, some patterns are easy to polish, while some of them are not so easy to polish. take WP3001 and WP3105 as an example, these two items are also look similar in some how, but in fact WP3105 is more time consuming to polish, that is why the price of  WP3105 is higher than WP3001.