OpenGL Game Engine - Part 1

I've been working on putting together a game engine using OpenGL, SDL and GLM. I've got textures loading, batching and displaying as 2D elements on screen. Input works so you can move around as Mario. 

I'd used this video series to get things off the ground and have been modifying the code once I got a good starting point. Things are very well explained and I highly recommend them.

Next steps are to get the architecture for nested elements and collision detection.

Here's a video of my progress thus:

Here's a link to download the source project (VS 2013)