I suggest you do some searching here on houzz for contemporary updates of split level homes. I see you have ideabooks but no posts yet. Collect some ideas. You can add comments about things you like so when you look back at them you will know why you saved it! I will see what I can find for you.

Here are a few looks for inspiration.

You can hide your turn around driveway pad with a layout like this and add style and personality to your home. Can’t see into entry area very well, but you might be able to do that left wall in Epi wood stained deep red/brown tone.

Yes, new landscaping is desperately needed. And the shutters need to go.

All the suggestions for whole house and yard is too much for a single thread. For landscaping, start another thread for front yard and a separate one for back yard. For each, take photos the better display the areas in question. For the front yard, line the camera up with the front door and be no no more than about 30' away. from that one spot take a series of slightly overlapping photos that pan from far left to far right. You'll want to include space beyond the left and right of the house such that the neighboring houses are shown in the background.

For the back yard, use the same principle but line up with the center of the house. Be about 25' or 30' away from it. Be sure to capture the complete width from lot line to lot line.

You have a nicely proportioned house with a bit of modern style. It's great. I'd get rid of the shutters and the vertical trim in the back and keep the rest as it is. The clumps of grass in between tightly clipped evergreens don't look good. I'd move the grass. I'd also get a specimen tree or trees to put in your yard. A beautiful weeping cherry or a clump of native birch trees.