There is no “secret” method or sure way to get orders. You’re off to a good start with your gigs, they are very visually clean and appealing. Weighing in as a copywriter, however, your text needs work.
If you are a team of 25+ people, then you use “we”, “us”, and “our.” If you are a single person, you would use “I”, “mine” and “me”. You can’t mix the two or it sounds unprofessional.
You’re also asking for trouble with stuff like “satisfaction guarantees” and “100% money back” type of phrases - I’d heavily caution you to take those out entirely. You also lean on the passive voice too much, which is bad for both confidence and sales.