Environmentally sustainable fashion brand seeks a unique logo

Project Olive

We have just started a new business venture designing and marketing footwear that is environmentally sustainable, and we need a logo to work back with the feel of the brand. The product range will be developed using as many natural or recycled components as possible, with an emphasis on design, quality, comfort and durability. Simple footwear styles like ballet flats and open sandals will be subtly trimmed with all things natural and organic.
The 'Project Olive' brand will hopefully expand into other accessories product categories in the future (bags, scarves, jewellery etc), including a menswear range and therefore the logo will need to be versatile and not footwear or gender specific.
Initially our range of footwear will be available on our website (yet to be developed) and from small designer boutiques in Australia, but eventually we plan to market our exciting new brand globally!

Initially we will be targeting 28 - 38 year old women who are environmentally aware, well educated, confident and possess an impeccable personal style. Their busy lifestyle means that they are difficult to access and therefore we need the logo to be highly unique and recognisable.
Please keep in mind that eventually this brand will also develop a menswear line and therefore the logo cannot be too feminine.

We are looking for a logo design that can be used across many different mediums - first and foremost it will be used on our footwear (printed / embossed on the sock or sole). It will also need to feature on our website, business cards and other stationery, and maybe even used in signage for a freestanding retail store / department store concept store in the future. We don't necessarily need to have an olive encompassed in the design of the logo, but if you do decide to go that way, it needs to be subtle and not to overshaddow the main text. The logo needs to be creative (but not too arty) and sophisticated to appeal to our target market. Please find some logo designs below that we think suit the feel of our brand - you can gain inspiration from these but please don't copy - the logo must be original. Looking forward to seeing what you guys come up with!