Reddit mentions of The Vegan Gourmet, Expanded 2nd Edition : Full Flavor & Variety With over 120 Delicious Recipes

Glad you're enjoying it. There's a whole world of vegan cooking out there to enjoy. I love to cook and I thought going vegan would put a damper on that but I've found it's been quite the opposite.

I've heard good things about the Forks Over Knives cookbook, but I keep forgetting to pick up a copy. I don't do a ton of baking and mostly do more 'improvisational cooking', so my favorite is http://www.hotforfoodblog.com/ - I really dig their philosophy on food and how they improvise and really get into being imaginative.

I agree that lots of vegan cookbooks are basic. A lot of vegan food (at least in my experience) is pretty simple and quick, and I guess those cookbooks are trying to 'sell' veganism as a convenient thing. Here are some that I think look interesting, but I couldn't tell you if they would match your skill level.

https://www.amazon.com/Vegetarian-Cooking-Academy-California-Culinary/dp/1564260380

https://www.amazon.com/Professional-Vegetarian-Cooking-Kenneth-Bergeron/dp/0471292354

https://www.amazon.com/Vegan-Gourmet-Expanded-2nd-Delicious/dp/0761516263

I'm big on trying to make things from different culinary traditions, so I also like sites like http://veganlovlie.com/ which is Mauritian fusion cuisine (!).

Sites like http://findingvegan.com/ might lead you to some cool blogs. I've definitely gone down that rabbit hole a few times.

Anyway, welcome and good luck and happy cooking. :D