Hmmm ... so what about this report? Based on this information, the second Type 055 DDG 'Dalian' has been commissioned as no. 105 into the PLA Navy South Sea Fleet (SSF) on 25 December 2020.
To be clear in one thing, the ship seen in Hainan has a funnel cap, and so far we have seen only Dalian made ships have this for whatever reason. So 105 is likely to be the first Dalian made 055 and the first ship we have seen in previous pictures to have a funnel cap. If 105 has been commissioned, then either the commissioning is out of order --- first Dalian 055 is third 055 overall --- or we have completely missed the commissioning of 102 Lhasa, and 105 Dalian would have been the third commissioning.