Why not post your images in photo-a-day; I'm sure all of us would like to view images from Nigeria! You may need to read the 'Photo posting guide' thread first, and ensure that you post only the correct image sizes.
Your question about others having photos of parks could also be a suggested weekly theme thread, but I'll leave you to formally suggest it after you've established yourself in 'photo-a-day'.
As to reducing blue or other excessive colour tints, there are various programmes which can do this - and many other things of course. I use Adobe Photoshop Elements, but there are other programmes available.