Are points per category still locked to 10?
Or rather -- what's to stop one from having 10 kids, getting portraits of all of them, and then repeating ad infinum until you reach the desired score from painting points alone?
Other Questions:
The "Lot Furnished" value seems a poor way to measure wealth. Afterall, when the 9th generation is pregnant, who's to say that the family doesn't suddenly feel the need to liquidize their money into art and sculptures? I think I'd do networth same as the sims themselves see it (i.e. the "Be worth 50,000" wishes)
my 2cents