Hey durr, Inna! Sorry for the late reply, I don't get to dA that much often as before.
I scanned through some of your arts -- they were wonderful! You told me you "draw a little", you liar! Heehee
You said that you are an advertising major, right? My cousin graduated an advert major; you should check her dA!
She taught me a couple about sketching and colouring, though I need moar practice.
And God, it's been like a year since I drew digitally.