It's not bad for a beginner, I like the paintbrush you've turned into a gif but it's a little out of place with where you have placed it, it may have suited better next to your list. Personally, I'm not keen on the Habbo text font "Pixelart Service" but I understand it due to the audience you are targetting. Also, there are better pictures you could have picked other than the 3-pixel cube one that would show your creative vibe for future work you create.
Overall its good for a starting point, you should have a go at making some banner templates for FindRetros banner sizes.