Nice!

It's a very nice image but you shouldn't be so negative there's nothing wrong with the sources you have used. The only problem you have is with source 3 which the author states "Standard restrictions apply and FlorinN must be notified and credited when using the photo for any public work." That means you have to give a line of credit for the author, all you need to do is write " Thanks to FlorinN for the use of Source 3." and put that in your description or in the anchor text for source 3. If you don't you will be sent a warning to do so. It's a good idea to always give credit to the source authors, it's good manners and you'll never miss a required credit line.

Nicely put together but please be a bit more carefull with selecting/masking the images. In Hires the house looks very cut out like you only used the polygonal lasso tool and that's it. The mood is ok, but details like a good masking are very important. Good luck!