Thank you (especially to Silverquill) for interesting discussion and support. Finally, both categories were denied - firstly I was disappointed and frustrated, but after while, i recovered from disillusion 
I think that some things have to be changed in future (if any...) resubmission of both categories (Baroque and Renaissance).
After long and painfull discussion with friends -"officers" of both groups we decided that especially in Baroque we have to include religious buildings (so category will be without any object restrictions) - because from several points of view they are really masterpieces and jewels of Baroque architecture, (and some cross-waymarks are not so problematic). We have still one problem - and it is neo-baroque or pseudo-baroque, we would like to exclude these "styles" again, because here, in Europe in 19th century practically every building was built in some kind of neo- or pseudo-style (Renaissance, Baroque, Gothic...) and I will be very unhappy from waymark at every second building in Prague 
(or in any historic European city). The same is valid for Renaissance.
I sepnt several hours with cahnging the listing, creating some pictures with examples etc and finally system srashed after resubmission and I can not again chnge anytging in the category... 
It is not only our problem, here is several another categories and groups with the same bug in the System. Hopefully Groudspeak will repair it (probably damaged record in dtabase...). Till we are not able to do any changes and resubmit improved category for your second reviews...