You know, several times now I've seen you make a post, not receive a reply within 3 minutes, and identify a lack of interest.
I think you might need to adjust your expectations. This is not an instant message service like Discord where you will receive responses immediately. Forums are slow-burners. The way communication is intended to work here is that you leave some kind message, then people will see it on their own time, and if they are interested they will respond eventually.
As the forum needs to be manually refreshed to see updates, people check it only periodically. This means replies may take days, or sometimes weeks even. It's not everyone's cup of tea, but it's a different experience from chats. If you plan on staying here, it might be a good idea to adapt to that kind of mindset.
Hey, Ghostly Merch Line. Back in the early days of my account existing, I was a very impatient person as well, but like Gabumon said, sometimes people take longer to reply, especially when you put time differences between regions of the world into account. While I didn't spam like crazy, I did constantly ping people in the rp board. Overtime, I learned to adapt to other people's habits and not write posts too often. If you do that as well, perhaps you and your brother won't have as bad a rep around here.
Even still though, that card art isn't original. It was stolen from the official Unbroken Bonds set. If you plan on making pieces of artwork, take a look at the art threads that other users on here have put their hard work and effort into instead of stealing from official sources or using AI.