The bonuses for different races could use more varriance. Some possibilities:
SERAPH - nurturing jobs more effective (milking, cooking, nurse)? Bonus healing with healing magic?
DRAGONKIN - natural 1 armor (those scales on the skin aren't just for show)? Firebreathing?
SLIME - natural regeneration? Fire resistance? Ice vulnerability? HP boost (to simulate how hard they are to wound) I noticed you have magic damage types, perhaps weapon damage type (more than one, best applies - sword would have pierce and slash for example).
In terms of sizes and races, right now there doesn't seem to be any limits like there was in Strive 1 (fairies were small, so low max STR and END). In that sense, I find your new system kinda lacking. First, have a big size range, from tiny (fairy-sized) to huge () and have each race have a min and max size value inside that range.
Also have a body types, going from thin, lean, chubby, muscular. Perhaps break into into fat/weight and muscle?
If those have tangible effects in terms of stats/performance, and with every race having a range that applies to them (size, can NOT go outside bounds), or gravitate towards (body type.. or fat/muscle) then the races balance themselves out without stating every race precisely.
OR, you can go back to maximums dependant on race. Or some other solution.
As far as UI goes, I'll give it a thought, maybe whip up some mockup.