https://mods.factorio.com/mod/GiantEnemySpider
I have used some lines of code from here creating a more advanced version of the project as I had a similar idea.
While in early development (one night), it has graphics, 10 spiders and special spider equipment.
Source code open on github.

I've taken a look at your mod, however I don't see anywhere where I am credited for the original code (besides a small credit in the script itself). I'm fine with you using my code in your mod, however I would appreciate it if you credit me in the mod README.

Also, this mod isn't exactly "Further development" as much as it is a completely different mod. Also I am still developing my mod, there's just not much to update or add.