This game has very few "own" graphics, all enemies are from FF III,and a few other graphics are from FF II.The monsters mostly do not look like their FF VII counterparts
and Lindblums enemy images arent of good viewpoint and quality.
A lot of the towns and dungeons need remapping.
Then some tilesets are very unfitting,like using temple tiles for industrial areas or greeny slums.
Hanjuku Hero, a NES strategy game from Square has a nice tileset for your inspiration
You can view the FF VII maps at Glitterberris site,she translated all signs on them.