Good question for YOUR accountant.When you start a business, you need to list your strong points and your weak points. YOU perform the activities related to your strong points, and hire or contract with someone else to cover your weak points. Appears that accounting is a weak point.
Depreciation is usually done over 4 years. Doubt if you can depreciate clothing. For both it and the decorating work, you d usually set up a sinking fund to cover you for the cost of redoing/replacing them.It would be better to check these out with an accountant. Fixtures, fittings and equipment are usually over 4 years, as I said. Whatever period you do them over, it needs to be shown in notes to the accounts
This is why people use an Accountant! get professional advice - every small business should have an Accountant, otherwise you will lose out on allowances etc.