Antinika

It's not bad, but it'd be better if you'd download some more Buildings. But it's great so far.

I like the idea very much, because I think lots of beginners will get tips and help here. I'd like to see a region view of the whole island.
And maybe you should try to build a more realistic structure with lots of different quarters of the city and large suburban areas (if it fits the stylistic and architectural tradition you have intendet for your project). This way, a city of 100,000 inhabitants will consume a lot more space than yours, maybe several medium city tiles, but for me it is always worth it concerning realism and the look of the region. And it helps structuring and separating, but also connecting the outer areas and the CBD, industry etc. with transportation networks like highways and rail. This way you can also force your sims to use them even in relatively small cities, where they would be rather ignored otherwise.
Keep it up! I like it.

I like this city.. I just wish you best of luck!

~Joey

I don't think you need a ton of coustom content to make an interesting city.  CSG's boston V2 is the prime example of this.  It's all about how you design the city.  you do a nice job, keep it up!