Based on your existing answer, I can suggest a few more things to help ensure a reserve for the next collection. Firstly, I would recommend actively promoting the collection on social media and other online platforms. This will help to create a buzz and generate more interest in the collection. Secondly, I would suggest offering discounts and incentives to encourage people to buy the collection. This could include offering discounts for buying multiple copies or offering a free gift with each purchase. Finally, I would recommend working with influencers and other businesses to help spread the word about the collection. This could include giving them free copies to review, or offering them promotional discounts. By doing all of these things, you should be able to create enough demand for the collection to ensure a reserve for the next collection.
