I think you have picked a very good theme for your niche – clean and not busy
personally, I wouldn’t change a thing as it has ease of use and readability
Great looking theme, very nicely presented. The slider and the images are also looking good. I will suggest you to make a blog on a sub page and keep it updated with news and updates regarding your business. That way you will be able to generate more traffic and catch readership. Most people that have a business or service site keeps an updated blog on a subpage for the same reason.
