As more and more new artists start using the platform, more and more questions arise. I admit that nTopaz is kind of complicated for the average user sometimes but i promise that things will get a little easier after reading this post.
Posting Frequency.
All artists should try to post only one artwork per daily cycle. There is no rule about this actually and none will prevent someone from posting more than once per day, but it is to the artist advantage to submit art in this way. You must try to think nTopaz as a Contest Platform, the daily top 10 is the main contest and the other 15 day contests are around. The daily rewards and the place at the Top 10 come from the number of points a post gets at the end of the 24 cycle, the score. If an artist post more than one submission, risks to have the score divided between those submissions and end up with low scores in all of them.
English Texts.
I know that the majority of the community do not speak English as their native language and actually i feel very comfortable because it is not my native language too. As it seems English will be the main language of the community and we must make an effort to try and communicate more in it. It may sound hard for some but think English more like a tool than a language. You don't have to be perfect just a bit understandable in general meaning. So, always try to start your post with a small English text, then you can continue in your language. It will be in your advantage.
Contest Pages.
Sometimes artists get confused and post their submissions for a contest [CO] at the main page [CR]. It is a problem that can be solved manually by 
To submit your entries for the Golden Hours contest, which is a photography contest with a sunrise/sunset theme, you go here and press participate.
To submit your entries for the Music and Light contest, which is a music contest with a positive message, you go here and press participate.
To submit your entries for the Original Character Design contest, which is an art contest to design a character out of your imagination, you go here and press paricipate.