You're probably not going to find much more quality than those maps. The lowered sea level is a major component and the glacial ice was the other that combined to change how maps of the period would look (plus things like new sediments deposited at the end of the ice age, the relative lack of a Black Sea, and so on; those are fairly minor things, though).

There just isn't enough worldwide research to be able to say "here is an exact 30m DEM of what the world looked like at X years ago" for X beyond much more than 40 years.