Left for ruin

Left For Ruin, initially was meant for teenagers and similar categories but after a review, I honestly feel that Left for Ruin would appeal to audiences from age groups 16 and beyond. As my book is a combination of various genres and includes a combination of crime, thriller, and sci-fi, I assume there wouldn't be much competition. The slight bits of action and adventure could perhaps compete in the market with similar books
The book is the first