Whoaa... your username is quite long, paha. o~o Welcome to the forum, Twilight! It's a pleasure to meet you indeed.
Like already said, we have a wooonderful MLP club that you'll fit right into. It's run by one of the nicest people on the forum, too, so you're in for a wonderful time. It has a whole lot of members as well and the club will likely end up as one of your favorite relaxation spots here since it's so active and fun. :) I watched all the seasons of MLP but lately I haven't been as involved in the fandom anymore since I generally lost interest in that, but the show is
adorable! I can only dream to be able to animate so smoothly in the future.
And do you mean pixel fusions?
Pixel Art would definitely be the best place to post them if so! You can create your own thread if you have a few scratch examples to show, but if you're just looking to display your fusions then you should make a post in the Fusions/Recolors thread. While you're at it I'd definitely recommend to look around and post in other gallery showcases as well as our artists are wonderful and deserve all the comments they can get. All sprite galleries should be posted in Pixel Art while graphics and other digital artwork would fit best in its parent board,
Art & Design. If you're interested in creativity then you should look around other amazing places like Fan Fiction & Writing or Roleplay Corner and get involved there, yeah? They're all great places to find people with similar interests and get feedback on your work.
But yeah, we also have plenty of great Pokemon boards since this is a Pokemon forum, so whether you love the games, anime, manga, cards, or merchandise, then you can discuss all that here. Just be sure to read the rules of every individual board you plan on posting in so you can understand how things work. You're going to love this place, hehe.
Have fun!