ok ... to avoid starting another fight like the one i started over station... if you are to take this map as a serious map ... not a concept map ... then i will give the following review on the map ... strictly on a dm/insta map type...
Ok to start ... layout ... is basic and to open... there is one key object in the middle as which you consider a gallery... this gallery has the basic square hallway disign ... very dul .... the map does not show any merit as a map becuase of the lack of levels or any advantage to any part of the map... the map lacks objects to hide behind ...
as for lighting... the ambince as useual is too low and the lighting is in consistant... as for example the front gate is lit way more then the streets and the inside is lit even less ... it lacks the merit of any realism...
the texturing is wrong... the texture you use for lights... failed and is too flat and way over used by noobs... the map as a whole could use different textures... because ... besides the gallary pieces ... the textures make no logical sense
As for the archtexture.... it is absent as of best ... the lack of anything but pure cubes... lose any ability to be taken serious... as for the lamps infront of the gate... i dont no wat on earth they are but.... keep working on it...
the overall disign of the map ... is interesting... to improve this map .. i would go to a museum ... like an art one.... and then i would work from that model and then create content... for your map... keep in mind that all art is categlorized... also most museum include both an inside and outside .... a good design for such a map would be a traditional square or circle ... with a garden in the middle...
to make such a map look at making a new texture pack with more basic color package... you may also look into making some of the great such as the more cartoon styled artist ... such as Lichtenstein... point being that it would be more interesting of a map if you look at making it look more realistic...