That's looking great so far, Mayjune! Yes, I agree the ruler and elevation scale are on the small side; otherwise I'd say perhaps a title, a projection, a compass and graticules would add a nice touch for your map. I think for this style, a standard black ruler showing miles and kilometres would suffice; I suggest you search "atlas style maps" on Google and examine the variety of options you have, as well as the various types of information the scales usually show. Overall the inset world map looks fantastic. Did you use G. Projector to change projections? One other thing: are you planning to define the physical parameters for this world, such as climate zones? If you do, such details (as climate graphs) would add more oomph to your map.

Peter