Funnily enough I was hoping that someone would make a Traveller accommodation - thanks for obliging!!

Making your own elements for the map is a good thing to learn - I find that vector is usually easier for making symbols with clean lines and edges - might be worth downloading Inkscape?

Just throwing in some ideas here:

How about making the base octagonal rather than square? It just gives the impression of something more geodesic / far future / built on the fly etc.

The elements (beds etc), although nice individually, look like they've come from someone's 21st Century living room rather than being science fictiony / futuristic - a good reason to make your own perhaps?

I think you could have real fun with this in finding ways to maximise the space as much as possibe - e.g. a table that folds into the wall (maybe the beds too?), having multifunctional spaces etc.

Anyway, great work and fun to see a traveller entry!