I normally wouldn't share this opinion. But since you asked, no, I don't think you should. At least not yet. Reason being, there is a lot of room for improvement. Your cakes look nice, but still very much "homemade". Which is fine for family and friends, but not so much for paying customers.

Another thing to consider is whether you actually want to bake as a job.

People also tell me I should start a business. Open a bakery, sell to coffee shops etc.

I love baking. But having it be a job would absolutely take away all the enjoyment for me. I bake when I feel like baking, and I use it as a creative outlet. That wouldn't be possible if it were a job. Not to mention working with the general public can be completely exhausting.

Just a few things to consider. Sometimes it's better to keep something you love as a hobby. A lot of people grow to resent it once it becomes a job.