>>1018019
Fun artist. Just be aware, that kind of low-poly modeling can be even harder than standard modeling. It's all about economy. You can find some tips in this thread:
>>992953

This is not strictly anime but it is cartoonish low-poly: @vivini_cg on YouTube has some good walkthroughs where he builds somewhat simpler models. Be warned the guy speaks Portuguese and not all his stuff is dubbed or subbed, but it's the best free tutorials I know of in this area. You can adapt the lessons to the style you want.

If you're completely new to Blender, try some of Grant Abbitt's low-poly tutorials, especially if vivini_cg's Portuguese is too large a hurdle at first. If you're REALLY unfamiliar with Blender, start with some of these tutorials to find your footing:
https://youtube.com/playlist?list=PLn3ukorJv4vuchEeJ3a6tIAVlWZZ_5fi0