I did hear or read somewhere that Maskeliya's domed funnel was a precursor to Cunard's (Ivernia class ?). Guinea Pig design? - I don't know. Brocklebank's next class, Masirah, Makrana, etc., also sported the domed funnel.
On Maskeliya the Chief Engineer's accommodation extended to the ships side making the port side a blind alleyway. On Maturata, Maskeliya's sister ship it did not.