Ah, well I do like photography :) and I have to admit, mobile phones are more or less sony cybershots these days.
They both work the same way. just the sensor and lens size are different.
Thing with those cameras is, they don't have aperture (Depth of Field) controls so you can't get "artistic" shots.
If your budget is £400, you cannot go wrong with a Canon EOS 100D. It comes with an 18-55mm STM which is good to start with, and allows you to pull zoom and focus within those ranges.
But I know you love to paint scenery and things like this, so I would recommend the nifty50 lens (Canon's 50mm f1.8 mkII) which is an absolute bargain for what it is. You will get smooth, creamy photos where the subject is in high focus and the background is in bokeh, whether you shoot portrait or landscape, getting upclose and personal with this camera is great, and it let's a fair amount of light in with its wide aperture.
The nifty50 is a PRIME LENS - this means it sits at 50mm and does not do zoom - for a very good reason - what you shoot at 50mm PRIME will look soooo much better than the standard kit lens - the difference is phenomenal. And you can get great bokeh (depth of field) which is really beautiful when compared to the standard 18-55 kit lens.
The kit lens, though, is good for filming video as it has a silent running motor on it, you won't hear it whirring and zooming - and it's stilla good lens in its own right.
One thing you will realise once you get the basics of photography down, is that - you will get different results with different lenses.
In all honesty, I do not believe any pro photographer needs more than 5 lense in his kit bag.
Myself, I only have three lenses :) and they are enough for now.
I know all this can seem confusing, but if you have any questions, just ask here and in sha Allah I will reply.
Also, youtube is a great resource for learning pro photography from the professionals :)
Click Here for Amazon link
I really do recommend getting the 50mm Prime 1.8 Canon lens for this.
Its so much fun going out with a camera to shoot something :)
Let me know how it goes in sha Allah
Scimi