Work on one full theme takes about a month (it depends on the complexity, sometimes it takes 15 days). I am making themes for an elite author https://themeforest.net/user/azexo/portfolio
You can see my projects here:
Hi, Can you inbox me your charges to develop this HTML template to WordPress and get it approved in Themeforest Template 1 and Template 2. We would like to use Elementor free version plugin instead of Visual Composer.
Hi, I’m a designer (with approved PSD) looking for a WP developer to create themes.
My work here: https://themeforest.net/item/reviens-ecommerce-sketch-template/22212580