Low ceilings = flush lights. Before you purchase carpet get 5 or 6 agents round to value. Ask each for their opinion on what they think will appeal best. Ask them if you could get away with just laying underlay. For the wow factor make sure your budget is spent on items that you can take with you - think a huge 6fx3ft mirror, a bright modern art print, a mirrored console table etc. No need to splash out much just one item in a room or two to indicate wow. A patio table and chairs in the garden are also needed for the selling photos as they will help the buyer to see scale and the garden will appear more homely. A bowl of fruit in a chrome wire bowl in the kitchen will also add wow - stage with green apples and yellow lemons for example. So, to sum up the spend on 'wow' should be limited and only to what you take with you. As for the estate agents some of them do try very hard to give good sales advice so when you book them to value explain that the property is being flipped and you would welcome any ideas on how to present it. You may be surprised at what they suggest.

I think that bathroom really suits the colours. If I was intending to stay in the house long term then I would do it.... why not enjoy the colour and look your love. If you are going to sell in a few years and you are thinking it might be too bold then maybe just do one wall - after all the new owners can paint over it.

I love three in ones because if one bulb explodes, you've usually got a fair few backups before you have to completely fix the bulb (but that's just the laziness in me coming out). In my opinion, I don't think you need a demisting mirror because that's what the fan is for in the three in one.

I would go with the larger bedroom if you already have plenty of other toilets and are happy using those.