Finally, after a year "hard work", my approved photos reach 500. I still remember that in the first months, submitted a lot of photos and got almost half of them rejected, I didn't even understand why they were rejected.
But experience is a cumulative process, after one year, I'm really happy that my photography skills are improved and also earned some money, although it's not much. :)
Hope everyone will get what he/she want, not in "dream time" but in dreamstime :)

this 500th photo is: