Hello and welcome to the forum! I hope you have a good time here!
That's not bad for a first time. Keep practicing, I'm sure you'll get it better and better every time. Shading would help too but that's hard to do, so keep it simple for now.
As to where to get started, just look around for some chatting topics, or visit the roleplay or art sections. Basically do whatever you feel like and enjoy!
If you need anything feel free to ask, I'm at your disposal.
See you around!