Tags: #drawing, #pattern, #illustration, #landmark, #architecture, #building, #London, #pink, #sketch, #architectural details, #Adam Regester, #digital illustration, #London Skyline, #London Illustration, #London Cityscape, #London Souvenir, #cathedral, #architectural, #London gift, #london style, #ipad drawing, #traditional architecture, #church, #architectural sketch, #repeat pattern, #architectural drawing, #period architecture, #london town, #ipad illustration, #London landmark, #St Paul's, #St Paul's cathedral