Even presentations not made in SlideMagic can look like one. Have a look at “Standing on the shoulders of giants” by analyst Ben Evans:
The design approach:
One strong accent colour
Lots of variations of grey
Calm slide layouts
Clear grid structure
SlideMagic does not like these circles (yet) though and makes you fit into that boxy look :-).
For your next presentation, put the slides in slide sorter view, and take a step back. Do things look consistent in terms of layout, colour, and the balance between white space vs used space? If you struggle to stick to the discipline, SlideMagic is here to help.