I don't think I've ever heard of WaH but it seems like it's quite a well-known resource among hackers, so that's really wonderful. You'll have lots to contribute here if you already have hacking experience and I'm sure our Emulation board will be more than thrilled to have you! Do you mostly make Spanish-only hacks or is translating them to English an option? I've seen a lot of great-looking hacks that were in another language but sadly I can't really read anything besides English so I'm never able to try them out... :( So staring in awe is the best I can do usually, wah. You can share all sorts of things here on the forum ranging from mods to tutorials and other useful tools, so there are so many options to dig through. Since you have hacking experience, perhaps you can assist beginning hackers with their games sometime? Lots of 'em join for some help and it would be so amazing to help these guys get started!
But anyways, we're all really glad to have you here! PokeCommunity's by far the best community to share your ROM hacks but we're as great for discussing Pokemon as we are for showcasing fangames. Hopefullly you'll consider looking around the entire board as there are a lot of boards to try out, from trading/battling to fun things like trivia! I'm sure you'll have a swell time here if you keep logging on. :D; Wouldn't want you to disappear, after all, right? That'd make us all sad.
And finally, welcome to the forum, Edu! Thanks for taking the time to post an introduction and getting to know our community. Remember to contact one of our amazing members or staff if you need some guidance. I'd love to chat with you anytime as well, though I'm likely not the best person to go to for hacking help as I don't have much talent in that department.