Back in 2012, I created an android ROM for HTC Explorer which was based on HTC PICO EUROPE 1.28.401.1 stock ROM. Now it's clearly outdated but I would like to mention it here as it was my first step in android customization. The original thread with all the details is located at XDA forum at the link mentioned below. Feel free to check it out.
Back in the day I served more than 20,000 downloads of NExtGen, and it blew my mind that so many people used my ROM. I will always be thankful for the overwhelming support. Thank you!!!
These are some forum signatures and wallpapers I made in Photoshop. You can view the gallery at deviantart.