I'm quite creative and imaginative, but I don't know if I'm good at being artistic (if that makes sense...)
I have my Neptune/Uranus exact conjunction in the 5th, contacting everything (including asc. and mc) except Mars, Moon and Saturn.
Venus is my dominant planet (well, that's if you trust astro.com). It had like 15% dominance, and the next dominant planet was like 11% so I guess the site can't be far off if the gap is that much.
I read into my Sun/Moon combo and it said that it's supposed to make me artistic? I don't know. I have Libra sun (conjunct Jupiter) and moon.
I'm a Leo rising, which I've seen in a lot of artists (as well as Pisces and Sagittarius rising which I've seen a lot of). I don't know if that means anything.
I have Venus in 2nd, showing that I COULD make money through arts, maybe. Venus also rules my third house of communications and my tenth house of career.
Anyways.... I think it's linked to the 5th house (for performing arts) and 12th (for that real in-depth kind of arts and imagination). I'd take a guess that if these houses are empty, a lot of Leo or Pisces (or, to some extent, venus signs and aquarius) could make a good artist/creative person.
Just my thoughts
edited: oops, how silly of me to forget Venus exalted in Pisces! I guess people with this placement have potential to be quite artistic. I'm jealous of this placement, I want it...
Someone with Neptune dominant could be artistic, hypothetically, and Sun dominant people could be quite creative.
OHH and the all important aspects: Neptune in contact with Venus is a big one I've seen. Venus and Pluto. Venus and Uranus. Aspects involving these planets could add to the potential.
AND you're a really good drawer! Okay, I'll shush now.