Hey @ffanuelg the white FG4DATM is nice, looks great. The Marinesubstar looks good too. On the Substar the center gray compliments the outer black ring. So the outer black ring has highlighting in it. Maybe lower that lighting a little bit and get the outer ring to be more black (but not totally black).
In the white FG4 watch the logo CUCKOO is hard to read maybe because of the color plus the shadow. Maybe if you remove the shadow or darken the letters.