Yes, you can use your own resources.
As for the sample project, I'll leave that question to the hosts. Do be aware the Visu tiles are non-commercial usage only, so you won't be able to use those.
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Yes, certainly! What will make it easier for me to use the visu project is the language - it's already all in English, I just need to keep writing in English without having to change the entire language at all. If I had to translate every detail from Portuguese, it would take a long time. I will delete all tilesets and apply the patterns myself.
1. Yes, you can use your own images. The rules state that you can use your own assets. You just have to use the RPG Maker MZ engine.
2. Yes, you can use stuff from the Sample Game, but not the stuff that is non-commercial (as slimmmeiske2 pointed out.)
Thank you very much! Unfortunately I only saw this contest two days ago... I will do the best I can for the remaining 13 days!!
I've replaced all visu graphics with normal graphics.
I will translate most of the texts using the google translator, as I understand very basic English only. I don't know if any writing or translation errors could compromise the game's judgment but I'll do the best I can!!